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TiliK225 [7]
2 years ago
12

Evaluate (15 – 4x) + 5 when x = 3.

Mathematics
1 answer:
SIZIF [17.4K]2 years ago
5 0
When you rewrite the exhumation. After substituting the given value it should look like 15-4(3). Solve for parenthesis first(meaning to multiply) -4 times 3 is going to equal -12. Then you subtract 15-12 and you will get the answer if 3

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a-b=21 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-2) \\
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\underline{5a-2b=18 \ \ \ \ \ \ \ } \\
5a-2a=18-42 \\ 3a=-24 \\
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