117k views
2 votes
3(a - 1) + 2a = a + 1

User CoolBeans
by
5.3k points

1 Answer

7 votes

Answer:

a = 1

Explanation:

Step 1: Write equation

3(a - 1) + 2a = a + 1

Step 2: Solve for a

Distribute 3: 3a - 3 + 2a = a + 1

Combine like terms: 5a - 3 = a + 1

Subtract a on both sides: 4a - 3 = 1

Add 3 on both sides: 4a = 4

Divide both sides by 4: a = 1

User Weiran
by
4.5k points