120-(5*x-60)=60 540+(7+x)*10=700

Question

120-(5*x-60)=60 540+(7+x)*10=700

Answer 1

120 - 5x - 60 = 60
-5x = 120 - 120
-5x = 0
x=0
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540 + 70 +10х = 700
10х=700 - 70 - 540
10х = 700 - 610
10х=90
х=9