Answer:
x=8
Explanation:
3x-15=17-x move variable to the left and change its sign
3x+x-15=17 collect like terms
4x=17 + 15 (3x=x=4x)
4x= 32 divide both sides by 4
x=8 (dividing 4x by 4 cancels the 4,s out and leaves x)
x=1
3x-15=17-x
3x-x=17-15
2x=2
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