Реши уравнения х+3=11 3+х=12 11-х=3

Question

Реши уравнения х+3=11 3+х=12 11-х=3

Answer 1

X + 3 = 11
x +3 -3 = 11 -3
x = 8

3 + x = 12
3 + x - 3 = 12 -3
x = 9

11-x = 3
11 - x - 11 = 3 - 11
-x = -8
x = 8

Answer 2

Х=11-3
х=8
х=12-3
х=9
-х=3-11
-х=3-11
-х=-8
х=8