Question

Решите, нужно сверить.
2 * ( 2х + 1 ) = 6 * 3

Answer 1

2 × ( 2х + 1 ) = 6 × 3

4х + 2 = 18

4х = 18 - 2

4х = 16

х = 16 : 4

х = 4

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2 × ( 2 × 4 + 1 ) = 6 × 3