Hello castilloesperanza399!
Evaluate the expression when a= -7 and b=2
a-4b.
It's given that,
Our expression is 'a - 4b'. We already have the values of a & b, so to solve it we need to substitute the values given in the place of a & b.
- The value of the expression will be -15.
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Hope it'll help you!
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