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How do you eliminate the fractions of LCd?
This can be done in an equation only. Multiply the entire equation by the LCD. This cancels every denominator leaving an equation with no fractions. EX: x/3 + 2/5 = 3/4 so the LCD for 3,5, and 4 is 60 60(x/3) + 60(2/5) = 60(3/4) 20(x) + 12(2) = 15(3) no more fractions, just solve.
What is the product of the 2 solutions of the equation x'2 4'x-21 equals 0?
3 x - 7 = -21
If 4 more than twice a certain number is 3 less than that number what is the number?
the equation is 2x + 4 = x - 3 solving it yields x = -7
Why does a positive number turn negative when flipped to the other side of an equation?
When we move numbers from one side of an equation to another we are actually performing an action to each side of the equation. For example X + 3 = 7 to get the 3 to the other side we must subtract it from the left side of the equation. What we do to one side we must also do to the other X + 3 - 3 = 7 - 3 Most people skip writing the above step and go straight to the next notation X = 7 - 3 the answer of course is X = 4
How much greater is 4 squared than 3 squared?
The greatness of 4 squared and 3 squared is expressed by the equation: 16 - 9 which equals 7.3 squared equals 3 x 3 = 94 squared equals 4 x 4 = 1616 - 9 = 7
What is the equation of a quadratic formula that has answers of -4 and 3?
The roots of the equation are -4 and 3. Simplest solution is (x +4 )(x - 3) which multiplies out as x^2 + x - 12 = 0
If X-4 equals -7 What does X equal?
3
What is the definition of solution of equation?
An algebraic equation has (at least one) variable, usually called x. To solve the equation means to figure out the value of x. For example, in the equation x + 4 = 7 the solution is x = 3, because 3 + 4 = 7.
Find an equation for which -3 and 4 are solutions?
To find an equation where two numbers are solutions of x, do the following: x=-3 , x=4 x+3=0 , x-4=0 Multiply them together and set equal to zero, i.e. (x+3)(x-4) = x2-x-12 = 0
What is 3 times x equals 12?
An equation where x = 4
12 over x equels 4?
if you are asking what x is in the equation of 12/x=4. x=3
If the quotient of two numbers is 4 and their sum is 20. What are the two numbers?
Let x the first number, y the second number. equation 1: x/y = 4 equation 2: x+y =20 equation 3: manipulate equation 1 ----> x=4y substitute equation 3 to equation 2: 4y+y=20 5y=20 y=20/5 y=4 solve for the value of x by substituting the value of y to equations 1 or 2: using equation 1: x/4=4 x=4*4 x=16 using equation 2: x+4=20 x=20-4 x=16 Therefore, the two (2) numbers are: 4 and 16.
2x plus 3 equals x plus 4?
Do you need this equation factored or? 2x+3=x+4?
What function has an output value of 7 for an input value of 4?
You are basically looking for an equation with an x and y value where when 4 is set as x, y would equal 7. An equation of this is: 3 + x = y when x = 4, then y = 3 + 4 = 7
What is the equation of x equals 4?
2x+3=11
What is the equation of the line passing through 5 4 and the x intercept is 3?
The equation is y = 5x - 15 or y = 5*(x - 3)
When The circle below is centered at the point (-3 -4) and has a radius of length 2. What is its equation?
The equation is: (x+3)^2 + (y+4)^2 = 4
