## 225 : x = 15 / 2 x + 17 = 33 / 6 + 10 x = 6 mũ 5 : 6 mũ 3

Question

225 : x = 15 / 2 x + 17 = 33 / 6 + 10 x = 6 mũ 5 : 6 mũ 3

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1 year 2020-10-14T04:31:59+00:00 2 Answers 90 views 0

1. $a)225:x=15$

$⇔x=225:15$

$⇔x=15$

$\text{Vậy$x=15$}$

$b)2x+17=33$

$⇔2x=33-17$

$⇔2x=16$

$⇔x=8$

$\text{Vậy$x=8$}$

$c)6+10x=6^5:6^3$

$⇔6+10x=6^{5-3}$

$⇔6+10x=6^2$

$⇔6+10x=36$

$⇔10x=36-6$

$⇔10x=30$

$⇔x=3$

$\text{Vậy$x=3$}$

2. Đáp án:

ở dưới

Giải thích các bước giải:

$a)⇔x=225:15$

$⇔x=15$

$b)⇔2x=16$

$⇔x=16:2$

$⇔x=8$

$c)⇔6+10x=6^2$

$⇔10x=36-6$

$⇔x=30:10$

$⇔x=3$