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blsea [12.9K]
3 years ago
12

Work out the value of expression a - 3b when a=16 and b=3.

Mathematics
1 answer:
Elan Coil [88]3 years ago
8 0

Answer:

your answer is going to have to be 7

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4/7 = 12/x

Multiply each side by x, so the x drops out on right side:
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Distribute x:
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Multiply each side by 7, so the 7 drops out on left side:
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Divide:
x = 84/4
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