Решите уравнение 3x+7/4 +5=8x/9. Created by gtrhrthre. matematika-ru

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July 2022 1 4 Report

Решите уравнение 3x+7/4 +5=8x/9

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VasiaZozulia 3x+7/4 + 5 = 8x/9
(3x + 7)/4 - 8x/9 = -5
(9*(3x + 7) - 4*8x)/36 = -5
(27x + 63 - 32x)/36 = - 5
(-5x + 63)/36 = -5
-5x + 63 = -5 * 36
-5x = -180 - 63
x = 243/5 = 48 3/5

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