Answer:
Distribute
Step-by-step explanation:
4 x 5 = 20
4 x -a = -4a
-4a + 20 = 12
-20 From both sides
-4a = -8
Divide both sides by negative 4
a = 2
Answer:
Step-by-step explanation:
4(5-a)=12 divide each side by 4
5-a=3 subtract 5 from each side
-a=-2 divide each side by -1
a=2
or
4(5-a)=12 carry out multiplication indicated on left side
20-4a=12 subtract 20 from each side
-4a=-8 divide each side by -4
a=2
