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7x - 1 + 6x - 1 = 180
13x - 2 = 180
13x = 182
x = 14
Start from

It may be useful to multiply the whole expression by 2, in order to get rid of denominators:

Distribute the negative sign in the left hand side:

Move all terms involving x to the left, and all constants to the right:

Sum like terms:

DIvide both sides -5:

I believe it’s c good luck!
Answer:
Step-by-step explanation:
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