G = 3.5
STEP BY STEP WORK
-5+7g=3g+9
-3g -3g
-5+4g=9
+5 +5
4g=14
—- —
4 4
g=3.5
STEP BY STEP EXPLANATION
1) use inverse operations to get variable on one side( subtract 3g from each side)
2) use another inverse operation to get variable by itself (add 5 to each side)
3) simplify variable by dividing away the coefficient(basically another inverse operation, divide 4 from each side)
*14 divided by 4 equals 3.5
Hope I helped :)