x + 10 = 4x + 1
x - 4x = 1 - 10
-3x = -9
x = -9 ÷ (-3)
x = 3
ответ: 3
4x - 1 = -13 + 2x
4x - 2x = -13 + 1
2x = -12
x = -12 ÷ 2
x = -6
ответ: -6
x + 10 = 4x + 1
x - 4x = 1 - 10
-3x = -9
x = -9 ÷ (-3)
x = 3
ответ: 3
2)4x - 1 = -13 + 2x
4x - 2x = -13 + 1
2x = -12
x = -12 ÷ 2
x = -6
ответ: -6