Solve for a
a=\frac{5}{11}\approx 0.454545455
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5a-7+6a=-2
Add 6a to both sides.
11a-7=-2
Combine 5a and 6a to get 11a.
11a=-2+7
Add 7 to both sides.
11a=5
Add -2 and 7 to get 5.
a=\frac{5}{11}
Divide both sides by 11.
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