решите уроаления 4x+10=-10

Question

решите уроаления 4x+10=-10

Answer 1

4х=-10-10
4х=-20
х=-5 все;)

Answer 2

4х+10 = -10
4х = -10-10
4х = -20
х = -20/4
х = -5
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4*(-5) +10 = -10