Question

1) x/3 +2 = 15

2) -8x+20= 5x-6

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Answer 1

1

$\bold{ \frac{x}{3} + 2 = 15 } \\ \\ \bold{(3) \: \frac{x}{3} + 2 = 15 \: (3) } \\ \\ \bold{x + 6 = 45} \\ \\ \bold{x = 45 - 6} \\ \\ \boxed{\bold\red{x = 39}}$

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2

$\bold{ - 8x + 20 = 5x - 6} \\ \\ \bold{ - 8x - 5x = - 6 - 20} \\ \\ \bold{ - 13x = - 26} \\ \\ \bold{x = \frac{ - 26}{ - 13} } \\ \\ \boxed{\bold\red{x = 2}}$