Question

RESOLVA A EQUAÇÕES

A) E - 3³ = 100

b) 2x =4 = 16

c)5x +3 = 48

d) - 2.(x-3) = 18

e) 2.( 7x + 2) + 12.(x + 1) = 2

Answer 1

a) E - 9 = 100
E= 100+9= 109


c) 5x = 48-3 = 45
5x = 45
x= 45 ÷ 5 = 9

d) -2x +6 = 18
-2x= 18-6
-2x= 12
x= 12 ÷ (-2) = -6

e) 14x+4+12x+12= 2
14x + 12x = 2-12-4
26x= -14
x= -14÷26 = -7/13