9х-2х=84 6у+3у=486 (9-2)х=84 (6+3)у=486 7х=84 9у=486

Question

9х-2х=84 6у+3у=486 (9-2)х=84 (6+3)у=486 7х=84 9у=486

Answer 1

9x-2x=84
7x=84
x=84/7=12

6y+3y=486
9y=486
y=486/9=54

(9-2)x=84
7x=84
x=84/7=12

(6+3)y=486
9y=486
y=486/9=54

7x=84
x=84/7=12

9y=486
y=486/9=54