Answer:
a=3
Step-by-step explanation:
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a = 3
7a - 3 = 2a + 12
Add 3 to both sides of the equation:
7a - 3 + 3 = 2a + 12 + 3
7a = 2a + 15
Add 2a to both sides of the equation:
7a - 2a = 2a + 15 - 2a
5a = 15
Divide each side by 5:
5a ÷ 5 = 15 ÷ 5
