-53
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19 = m - 72
add 72 to each side
72 + 19 = m - 72 + 72
91 = m
check
19 = 91 - 72
19 = 19
checks
0.19
4x = 72.divide both sides by 4x = 18
It is: 2 times 36 = 72
x is 9.
6s+2s=72 combine like terms 6s+2s=8s set equal to 72 8s=72 divide both sides by 8 to solve for "s". 8s=72 8 8 your answer is s= 72/8 which is 9.