Question

resolva as equações

3×-2=4×+5

2×+8=5×-4

×+8=-×+10
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Answer 1

Resposta:

3x-4x=+2+5

-x=7 (-1)

x=-7

2x-5x=-8-4

-3x=12(-1)

x= 12/3

x=4

x+x=10-8

2x=2

x= 1