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4x + 2y = 30 Since there are two variables ('x' and 'y'), two independent equations are needed in order to find unique values for both variables. With only one equation, there are millions of sets of values for 'x' and 'y' that satisfy it. For example: x = 4 and y = 7 satisfies it, and so does x = 6 and y = 3.
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6y plus 30 equals 2y plus 22?
Are you asking to solve for "y" in this? If so, you have to move stuff around. My suggestion: Subtract 2y from both sides, giving you 4y + 30 = 22 Subtraact 30 from both sides, giving you 4y = -8 Divide both sides by 4, giving you y = -2
3y plus 5 equals y-25?
3y+5=y-25 2y=-30 y= -15
Solve the system of equations 3x - 6y equals 30 y equals -6x plus 34?
x = 6 and y = -2
What is 30 plus 30 plus 30 plus 30 plus 30 plus 30 equals?
30 + 30 + 30 + 30 + 30 + 30 = 180
What plus what plus what equals 30?
10 + 10 + 10
How do you do 2x plus y equals -12 -4x-2y equals 30?
2x+y=-12-4x-2y=30 x=-y/2+30, you plug this into -12-4x-2y=30 and get -12+2y-120-2y=30 which gives 2y-2y=162. This is not possible, so the equation is unsolvable.
Solve this using substitution x plus 2y equals 30 x2 plus y2 equals 900?
x+2y = 30 => x= 30-2y x2+y2 =900 (30-2y)2+y2 = 900 (30-2y)(30-2y)+y2 = 900 900-60y-60y+4y2+y2 = 900 5y2-120y = 0 y(5y-120) = 0 y = 0 or y= 24 Substitute the value of y into the original equations to find the value of x: Therefore: x = -18 and y = 24 Check: -18+48 = 30 and (-18)2+242 = 900
6y plus 30 equals 2y plus 22?
Are you asking to solve for "y" in this? If so, you have to move stuff around. My suggestion: Subtract 2y from both sides, giving you 4y + 30 = 22 Subtraact 30 from both sides, giving you 4y = -8 Divide both sides by 4, giving you y = -2
What is the slope intercept form of the equation 5x plus 2y equals 30?
5x+2y = 30 2y = -5x+30 y = -2.5x+15 Therfore the slope is 2.5 and y the intercept is 15.
2y plus 3y-7y plus 4 equals 16?
2y+3y-7y+4=16 -2y=12y=-6Check it-12-18+42+4=16-30+46=1616=16
How do you solve 7x plus 3y equals 30 -2x plus 3y equals 3 in an order pair?
(3,3)
If 30 plus 7 equals 37 how does that help you solve 37 plus 23?
It does not help you.
How to find elimination method for 3x - 4y equals 30 and 3x plus 2y equals 6?
Subtract: 3x - 3x - 4y - 2y = 30 - 6 ie -6y = 24 so y = -4 and x = 14/3
What is 4x plus 8y equals 20 - -4x plus 2y equals -30?
It looks like you have 2 simultaneous equations with 2 variables:4x + 8y = 20 and -4x + 2y = -30. Solution is {x=7, y = -1}.One way to solve:Add the two equations together, combining like terms: (4x - 4x) + (8y + 2y) = 20-30 --> 0 + 10y = -10 --> y = -1. Substitute this into either of the original equations and solve for x=7, then check in the other equation to make sure you calculated correctly.
What is the x and y coordinates of these equations y equals 3x and 4x plus 2y equals 30?
4x + 2(3x) = 30 10x = 30 x= 3. Y= 9. (3,9)
3y plus 5 equals y-25?
3y+5=y-25 2y=-30 y= -15
Is 3x plus 2y equals 15 and 6x plus 4y equals 30 Consistent or inconsistent?
We will see. 3X + 2Y = 15 6X + 4Y = 30 I do not like the look of elimination, so substitution 3X + 2Y = 15 3X = 15 - 2Y X = 5 - 2/3Y -------------- 6(5 - 2/3Y) + 4Y = 30 30 - 12/3Y = 30 30 - 4Y = 30 this is inconsistent in approach 3(5 - 2/3Y) + 2Y = 15 15 - 15/3Y = 15 another bad approach, try elimination to show inconsistency - 2(3X + 2Y = 15) 6X + 4Y + 30 -6X - 4Y = - 30 6X + 4Y = 30 I think it is safe to say these systems of equations are inconsistent --------------------
