Mathematics
Grade-8
Easy
Question
Solve the equation 2a − 7 = 5a + 8
- - 4
- - 5
- - 6
- - 7
Hint:
Take variables on one side and constants on the other side to solve the equation.
The correct answer is: - 5
2a − 7 = 5a + 8
-7 - 8 = 5a - 2a
-15 = 3a
a = -15/3
a = -5
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