Question

1) Resolva as equações:

a) 2 x + 4 = 16

b) 2 x - 2 = 12 - 5

c) 2 (x + 5) - 4 = 26

d) 3 ( x + 2) = 2 (x-7)

e ) 5x - 91 = 4x - 77​

Answer 1

Explicação passo-a-passo:

a) 2X +4= 16

2X = -4 +16

2X= 12

X=6

b) 2X -2= 12 -5

2X =12 -3

2X=9

X=4,5

c) 2( X+5) -4=26

2X+10=22

2X=12

X=6

d) 3( X+2)=2( X-7)

3X+6=2x-14

X=20

e) 5X -91= 4X-77

5X -4X= 91-77

X=26