Answer: A=20
Step-by-step explanation:
3×A=30+30............eqn 1
3A=60
A=60/3
A=20
Substitute A=20 into equation 1
3x20= 30+30
Answer:
A = 20
Step-by-step explanation:
To check, you can subsitute a for 20 in the equation.
3 x A + 30+30
3 x 20 = 30+30
60 = 30+30
60 = 60
Therefore, A= 20.
