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blsea [12.9K]
3 years ago
10

Solve for x 15x+5x 14x-6

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
8 0

Look at the picture.

[tex\alpha+\beta=180^o[/tex] - supplementary angles

Therefore we hve the equation:

(14x-6)+(15+5x)=180\\\\(14x+5x)+(-6+15)=180\\\\19x+9=180\qquad\text{subtract 9 from both sides}\\\\19x=171\qquad\text{divide both sides by 19}\\\\\boxed{x=9}

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