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OpenStudy (anonymous):
5x+9=7x+21
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OpenStudy (anonymous):
Taking x's to the left side and numbers to the right side you got: \[5x-7x=21-9\] \[-2x=12\] \[x=12/(-2)\] \[x=-6\]
OpenStudy (anonymous):
ok thx
OpenStudy (anonymous):
5x+9=7x+21 5x-7x=21-9 -2x=12 x=12/-2 x=-6
OpenStudy (anonymous):
x = -6
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