\[5+2X=5X-7\]
1
Subtract 2X2X from both sides.
5=5X−7−2X5=5X-7-2X

2
Simplify  5X−7−2X5X-7-2X  to  3X−73X-7.
5=3X−75=3X-7

3
Add 77 to both sides.
5+7=3X5+7=3X

4
Simplify  5+75+7  to  1212.
12=3X12=3X

5
Divide both sides by 33.
123=X\frac{12}{3}=X

6
Simplify  123\frac{12}{3}  to  44.
4=X4=X

7
Switch sides.
X=4X=4

Done

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