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If 2a + 3a = 7a - 4a + 12, then what is the value of a?
1. 3
2. 6
3. 4
4. 1

1 Answer

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Best answer
Correct Answer - Option 2 : 6

Given

2a + 3a = 7a - 4a + 12

Concept

Separate the variable and non variable terms first and then solve the equation.

Calculation

2a + 3a = 7a - 4a + 12

5a = 3a + 12

5a - 3a = 12

2a = 12

a = 6

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