Question

решите пж....... ...................... ​

Answer 1

х=13

13+3у=15

15-13=2

1у=1,5

Answer 2

X=-10+Y; Y-10+3Y=15; 4Y=25; Y=6,25 X=-10+6,25; X=-3,75

Answer 3

х - 3 = -10

х = -10 + 3

х = -7

-7 + 2у = 15

2у = 15 + 7

2у = 22

у = 22 : 2

у = 11