Replace the value of m by each number given, then solve:
m= 1
2 (3m+7)
2 (3(1)+7)
2(3+7)
2(10)
20
m=1
6m+14
6(1)+14
6+14
m=2
2(3m+7)
2(3(2)+7)
2(6+7)
2(13)
26
6(2)+14
12+14
1.6m questions
2.0m answers