Question

Solve equation.

16 a+21=20 a-9

Answer 1

Answer: a = 15/2 ,

Explanation:

Subtract 21 from both sides 16a+21 = 20a-9

16a + 21 -21=- 20a- 9 -21

Simplify the expression

16a + 21 -21=- 20a- 9 -21

16a=20a -30

Subtract 20a from both sides

16a=20a -30

16a - 20a = 20a -30 - 20a

Solution

a = 15/2