QUIZZZ! (25 points + brainliest for the best answer)

4 - 2y + 51 + 7x - 1y + 3x

10x−3y +55  

1.)4-2y+51+7x-y+3x

=55-2y+7x-y+3x

2.)55-2y+7x-y+3x

=55-3y+7x+3x

3.)55-3y+7x+3x

=55-3y+10x

4.)55-3y+10x

=10x-3y+55

55 - 3y + 10x OR 11 = x, 55 = y

Step-by-step explanation:

just simplifying

4 - 2y + 51 + 7x - 1y + 3x

4 + 51 - 2y - 1y + 7x + 3x

55 - 3y + 10x

setting equal to zero

4 - 2y + 51 + 7x - 1y + 3x = 0

4 + 51 - 2y - 1y + 7x + 3x = 0

55 - 3y + 10x = 0

55 + 10x = 3y

(55 + 10x) = y

55 - 3y + 10x = 0

55 - 3(55 + 10x) + 10x = 0

55 - 165 - 30x + 20x = 0

110 - 10x = 0

110 = 10x

11 = x

55 - 3y + 10x = 0

55 - 3y + 10(11) = 0

55 - 3y + 110 = 0

165 - 3y = 0

165 = 3y

165/3 = y

55 = y

checking

4 - 2y + 51 + 7x - 1y + 3x = 0

4 + 51 - 2y - 1y + 7x + 3x = 0

55 - 3y + 10x = 0

55 - 3(55) + 10(11) = 0

55 - 165 + 110 = 0

165 - 165 = 0

0 = 0