Угадай корень уравнения x+3=9-x

Question

Угадай корень уравнения x+3=9-x

Answer 1

Х+3=9-х
х+х=9-3
2х=6
х=3

Comments

X + 3 = 9 - X
X + X = 9 - 3
2X = 6
X = 6 : 2
X = 3
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3 + 3 = 9 - 3
6 = 6

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