Question

A)-X+3=-2x+1
B)5b+7-10=-3b+13-12
Me ajudemm
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Answer 1

olá !!!

a)

$-x+3=-2x+1\\x=-3+1\\x=-2\\\\b)\\5b+7-10=-3b+13-12\\5b+3b=1+10-7\\8b=4\\b=4/8\\b=0,5$

espero ter ajudado

Att: Jovem Lendário