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2-x=\frac{1}{5+2}\left(7-x\right)
Subtract 3 from 4 to get 1.
2-x=\frac{1}{7}\left(7-x\right)
Add 5 and 2 to get 7.
2-x=\frac{1}{7}\times 7+\frac{1}{7}\left(-1\right)x
Use the distributive property to multiply \frac{1}{7} by 7-x.
2-x=1+\frac{1}{7}\left(-1\right)x
Cancel out 7 and 7.
2-x=1-\frac{1}{7}x
Multiply \frac{1}{7} and -1 to get -\frac{1}{7}.
2-x+\frac{1}{7}x=1
Add \frac{1}{7}x to both sides.
2-\frac{6}{7}x=1
Combine -x and \frac{1}{7}x to get -\frac{6}{7}x.
-\frac{6}{7}x=1-2
Subtract 2 from both sides.
-\frac{6}{7}x=-1
Subtract 2 from 1 to get -1.
x=-\left(-\frac{7}{6}\right)
Multiply both sides by -\frac{7}{6}, the reciprocal of -\frac{6}{7}.
x=\frac{7}{6}
Multiply -1 and -\frac{7}{6} to get \frac{7}{6}.