2y+x=-15
x=3y
2y+(3x)=-15
2y + (3*3y) = -15
11y=-15
y = -15/11

4x+7y=19
y=x+9
4x+7(x+9)=19
4x + 7x + 63 = 19
11x = -44
x = -4

y=6x+11
2y-4x+14
2(6x+11)-4x+14

2x-8y=6
y=-7-x
2x-8(-7-x)=6

x=2y-1
3x-2y=-3
3(2y-1)-2y=-3

what do x and y equal in each of these

What is the value of x? enter your answer in the box. (cm)

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Simplify the expression below -3(10x+4y)+6(6x-2y)