Answer:
7m
Explanation:
3(x)m + 4(x)m = 7(x)m
m is the same value so were adding 3+4 which is 7
an example:
lets say m = 2
ur question is now 3(x)2 +4(x)2 = 7(x)2
3x2 = 6
4x2=8
6+8= 14
7x2 = 14
wouldnt it be 7m
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