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What is 28 - 4y?
if your solving for y, it's y=7. you have to get y alone and to do that you have to divide 4y by 4. now you have y alone. you also have to divinde the other side of the equation(28) by 4...which equals 7
What is an unknown or changable quantity?
It is the variable as for example in the term 4y it is y that is the variable
What is 5x-4y-28?
It is an algebraic expression but if you mean 5x-4y-28 = 0 then it is a straight line equation.
What equation represents a line parallel to the graph of 2x - 4y equals 16?
2x-4y = 16 -4y = -2x+16 y = 1/2x-4 Any equation that has a slope of 1/2 but a different intercept of -4.
What is the slope-intercept form of the linear equation x 4y 12?
If your equation was x + 4y = 12, then: x + 4y = 12 → 4y = -x + 12 ← y = -x/4 + 3 If your equation was x = 4y + 12, then: x = 4y + 12 → 4y + 12 = x → 4y = x - 12 → y = x/4 - 3
How do you get variable alone in 4y equals 3?
4y/4 = 3/4 y = 3/4
How do you isolate a variable in a equation?
There are a few ways to isolate a variable. First, add or subtract anything to get a monomial on one side containing the variable. Then divide by anything that is being multiplied to the variable. Here is an example: xy-4z=2z-4y solving for x xy=(2z+4z)-4y xy=6z-4y x=(6z-4y)/y
What does combine like terms mean in math?
it means to put together the terms that have the same variable. so if you had the equation: 2x+4y+5x it would simplify to 7x+4y because you would combine to the two x-variables.
What it is called when you isolate a variable on one side of an equation?
That is called "solving for a variable". If there is only one variable in the equation, then it is a "solution". For example, 3x + 4y = 13 can be solved for x as 3x = -4y + 13 x = -(4/3)y + 13/3 This is solved for x. Another equation with only one variable: 5z - 6 = 4 5z = 10 z = 2 This is a solution.
What is 28 - 4y?
if your solving for y, it's y=7. you have to get y alone and to do that you have to divide 4y by 4. now you have y alone. you also have to divinde the other side of the equation(28) by 4...which equals 7
What is the variable in the expression 4y plus 9?
4y + 9The variable is Y. The variable is the letter (the unknown amount)
Which line represents 5x plus 4y equals 20?
5x+4y=20 is technically the equation of a line. A more familiar representation of the line is in "y equals" notation. This simply means that the y variable has been isolated (this notation is usually required for graphing calculators). To get the equation in y equals notation, simply isolate the y variable: 5x+4y=20 4y=(-5)x+20 y=((-5)x+20)/4
How do you solve x - 4y 10?
To solve the equation ( x - 4y = 10 ), you can isolate one variable in terms of the other. For example, you can express ( x ) as ( x = 4y + 10 ) or express ( y ) as ( y = \frac{x - 10}{4} ). You can then substitute specific values for one variable to find corresponding values for the other.
If you were to solve the following system by substitution what would be the best variable to solve for and from what equation 2x plus 6y equals 9 3x-12y equals 15?
2x + 6y = 93x - 12y = 15Chose the second equation because you can simplify it.3x - 12y = 15 divide by 3 to both sidesx - 4y = 5 add 4y to both sidesx = 4y + 5Replace 4y + 5 for x to the first equation.2x + 6y = 92(4y + 5) + 6y = 98y + 10 + 6y = 914y = -1y = -1/14x = 4y + 5x = 4(-1/14) + 5x = -2/7 + 5x = -2/7 + 35/7x = 33/7
How do you solve 9y-818-4y?
I assume you are solving for y. First you need to form an equation since you don't have an equal sign. The equation would be 9y - 818 - 4y = 0. Next, you have to isolate the unkown number from the known number by adding 818 to both sides of the equation and you would have 9y - 818 - 4y + 818 = 0 + 818, then your equation would read 9y - 4y = 818. Simplify the unknown number by subtracting 4y from 9y which now makes the equation 5y = 818. To find the value of y, divide both sides of the equation by 5. Hence 5y/5 = 818/5. Thus, y = 163.6. To prove the solution, substitute 163.6 for y and solve.
-x +4y=20 -7x+4y=-4?
Assume the first equation is E1: -x+4y=20 Assume the second equation is E2: -7x+4y = -4 Since both equation include 4y, we could eliminate y first. So E1 - E2: -x+4y - (-7x+4y) = 20 - (-4) -> -x+4y+7x-4y = 24 -> 6x = 24 -> x = 4 Thus substitute x = 4 to either E1 and E2, and I will just substitute it into E1: -x + 4y = 20 -> -4 + 4y = 20 -> 4y = 24 -> y = 6 Therefore, x = 4 and y = 6
What is 8=4x+4y?
Equation
