Question

resolva as equações abaixo:
a)3x - 1 = 5

b)4(x - 1) = 6 - x

c)2y + 5 = y - 1

d)7 (x + 3) = 56

e) 5x - 8 = 7

f) -2 -2x = 7 - 5x

Answer 1

Oi

a) 3x - 1 = 5,   3x = 6,  x = 2

b) 4x - 4 = 6 - x, 5x = 10,  x = 2

c) 2y + 5 = y - 1,  y = -6 

d) 7*(x + 3) = 56 , x + 3 = 8, x = 5

e) 5x - 8 = 7,  5x = 15,  x = 3

f) -2 - 2x = 7 - 5x,  3x = 9, x = 3

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