Question

Решите уравнение:
1) 7 + x = 4;
2) -24 - y = -16.

Answer 1

1) 7 + x = 4
x = 4 - 7
x = -3
2) -24 - y = -16
y = -16 + (-24)
y = 40 

Answer 2

1.7+x=4
x=4-7
x=-3
2.-24-y=-16
-y=-16+24
-y=-8
y=8