Question

Resolva:a)x-3=5 b)x+2=7 c)4x-10=2x+2 d)x-7=-7 e)5x+6x-16=3x+2-4 f)x-109=5 g)5(2x-4)=7(x+1)-3

Answer 1

Resposta:

a) x=8

b) x=5

c) x=6

d) 0

e) x=7/4

f) x=114

g) x=8

Explicação passo-a-passo:

a) x-3=5

x=5+3

8

b) x+2=7

x=7-2

5

c) 4x-10=2x+2

4x-2x=2+10

2x=12

x=12/2

6

d) 0

e) 5x+6x-16=3x+2-4

11x-16=3x-2

8x=14

x=14/8

7/4

f) x-109=5

x=5+109

114

g) 5(2x-4)=7(x+1)-3

10x-20=7x+7-3

10x-20=7x+4

10x-7x=4+20

3x=24

x=24/3

8