If a = m, b=m-4, C=m+2, then 4 a+3b-7c=?
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4
Answer:-26
Step-by-step explanation:
4a+3b-7c=4m+3(m-4)-7(m+2)
= 4m+3m-12-7m-14
=7m-12-7m-14
= -12-14
=-26
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