RESOLVA AS EQUAÇÕES : A 5X - 5 + x = 9 + x b] 7x + 8 = 4x - 10 c] 7x - 4 x = -2 x + 8 - 3x d] 4x - 15= -2x + 3 e] -x - 5 = 4x = - 7x + 6x + 15 f] 2x - 4 - 8 = 4x g] 3x - 2x = 3x + 2 h] 3x = x + 1 + 7 i] 360 + 36x + 30x
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5x = 14
x = 14/5
x = 2,8
b) 7x - 4x = -10 -8
3x = -18 .(-1)
x = 18/3
x = 6
c) 7x - 4x + 2x + 3x = 15 + 5
8x = 20
x = 20/8
x = 2,5
d) 4x + 2x = 3 + 15
6x = 18
x = 18/6
x = 3