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Aliun [14]
3 years ago
6

Evaluate 4(2a - b) when a = -1 and b = 5 A -48 B -28 C -12 D 32

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0
I'd suggest you enclose -1 and 5 within brackets as shown:


4( 2[-1] - [5] ).  Do the work within parentheses FIRST:  4( -7 ).
Then multiply as indicated:  -28
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