Question

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

Answer 1

the value of a=15

Explanation:

5a-10b=45

5a-10(3)=45

5a-30=45

+30 +30

5a/5 = 75/5

a=15

Answer 2

15

Explanation:

5a-10b=45, b=3

• 5a-10*3=45
• 5a= 45+30
• 5a= 75
• a= 75/5
• a=15