Question

решите уравнение 
7х-(5-х)=6(х-2)+1

Answer 1

7x-(5-x)=6(x-2)+1
7x-5+x=6x-12+1
8x-5=6x-11
8x-6x=5-11
2x= -6
x= -$frac{6}{2}$ = -3
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7*(-3) - (5+3) = 6(-3-2)+1
              -29 = -29