Question

1)13х-10х=7х+2
2) 19-15(х-2)=26-8х
решите уравнение
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Answer 1

$1)3x - 7x + 2 = 0 \\ - 4x + 2 = 0 \\ - 4x = 0 - 2 = - 2 \\ x = - 2 \div ( - 4) = \frac{2}{4} = \frac{1}{2}$

$= 0.5$

$2)19 - 15x + 30 = 26 - 8x \\ 49 - 15x - 26 + 8x = 0 \\ 23 - 7x = 0 \\ 7x = 23 \\$

$x = 23 \div 7 = \frac{23}{7} = 3 \frac{2}{7}$