Question

Equação de 1° grau

a) 2(×-6)=3 (5+×)

b) 3(×+10) -2 (×-5)= 0

c) 3 (x -1)-2×-4= 1

d) 7 (+ -1) -2(×-5)= ×-5
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Answer 1

a)

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

2x-12=15+3x

2x -3x =15+12

-x=27

x=-27

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b)

3(x+10)-2(x-5)=0

3x+30-2x+10=0

5x+40=0

5x=-40

x=-40/5

x=-8

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c)

3(x-1)-2x-4=1

3x-3-2x-4=1

x-7=1

x=1+7

x=8

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d)

7(x-1)-2(x-5)=x-5

7x-7-2x+10=x-5

4x=-8

x=-8/4

x=-2

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ESPERO TER AJUDADO