please help, i will give BRAINLIEST. Write an expression in the simplest form to model the perimeter of the following triangle:
1 answer:
Answer: Original expression: 2x - 11 + 4x + 7 + 3(x-4)
Simplified: 9x - 16
Step-by-step explanation:
2x - 11 + 4x + 7 + 3(x-4) becomes 2x - 11 + 4x + 7 + 3x -12
Group like terms, then combine to simplify:
2x + 4x + 3x -11 + 7 - 12
2x + 4x + 3x = 9x
-11 -12 + 7 = =23+7= -16
Simplified expression: 9x - 16
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4.44
Step-by-step explanation:
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X=y-2
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Substituting for x into the second equation, we find
2y=5(y-2)-17
2y=5y-10-17
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