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OpenStudy (anonymous):
Solve: 3x + 7 = 15 - 2x
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OpenStudy (anonymous):
add 2x to both sides and subtract 7 from both sides, what does that lead to?
OpenStudy (anonymous):
5x = 4x? :S
OpenStudy (anonymous):
I mea 5x = 8 - 4x
OpenStudy (anonymous):
5x = 8
OpenStudy (anonymous):
The 2x on the right side go out when you put 2x on that side.
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OpenStudy (anonymous):
\[3x + 7 = 15 - 2x\]\[3x+2x=15-7\]\[5x=8\]\[x=8/5\]
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