Question

equação
resolva:

a)-3×+4=+2×-16




b)5×-×-10=×+5





c)2.(-×-4)=3.(-2×+8)

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Answer 1

Resposta:

a)-3×+4=+2×-16

-3x - 2x = -16-4

-5× = -20 (-1)

x= 20/5

x= 4

b)5×-×-10=×+5

5x-x-x= 5+10

3x=15

x=15/3

x=5

c)2.(-×-4)=3.(-2×+8)

-2x - 8 = -6x + 24

-2x+6x=24+8

4x= 32

x=32/4

x=8