Question

Как упростить уравнение 8×(12m+27)+5×(31-17m)=448

Answer 1

$8cdot (12m+27)+5cdot (31-17m)=448\\96m+216+155-85m=448\\11m+371=448\\11m=77\\m=7$

Answer 2

8×(12m+27)+5×(31-17m)=448
96m + 216 + 155 - 85m = 448
11m = 448 - 216 - 155
11m = 77
m = 77 : 11
m = 7