4m + 2(m + 1) = 9m + 5
What we need to do here is combine like terms, then apply the inverse operation, and finally, isolate the variable.
Here's how it's done:
4m + 2m + 2 = 9m + 5
4m and 2m are like terms, so add them together.
4m + 2m = 6m
6m + 2 = 9m + 5
-6m -6m
2 = 3m + 5
-5 -5
3m = -3
3m/3 = -3/3
m = -1 should be your answer.
Next one: 3(4x – 2) = 9 + 2x + 5
12x - 6 = 9 + 2x + 5
-2x -2x
10x - 6 = 9 + 5
10x - 6 = 14
+6 +6
10x = 20
x = 2 should be your answer.