Question

A)2x-8=2(x-4)= B)18x+5=18x-12= C)7x+10=7x+10= D)10(x+1)-5(x-3)=30
2-3(2x-1)=-6x+5

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Answer 1

Resposta:

A)2x-8=2(x-4)=

2x -8 = 2x -8

2x -2x = -8 +8

0x = 0

x = 0

...

B)18x+5=18x-12=

18x -18x = -12 -5

0x = -17

x = 0

...

C)7x+10=7x+10=

7x -7x = 10 -10

0x = 0

x = 0

...

D)10(x+1)-5(x-3)=30

10x +10 -5x + 15 = 30

10x -5x = 30 -10 -15

5x = 5

x = 5/5

x = 1

...

2-3(2x-1)=-6x+5

2 - 6x + 6 = -6x +5

-6x +6x = 5 -2 -6

0x = 5 -8

0x = -3

x = 0

Explicação passo-a-passo: