Question

Std 7 Maharashtra board
Try this (Simple linear equations)
Is 3 a root of 2b+ 6=12?

Find the root of the equation a+2=3​

Answer 1

$2b + 6 = 12 \\ 2b = 6 \\ b = 3$

$a + 2 = 3 \\ a = 1$

Answer 2

Is 3 a root of 2b+ 6=12?

Yes

Step-by-step explanation:

$a + 2 = 3$

$a + 2 = 3 \\ a = 3 - 2 \\ a = 1$

$2b = 12 - 6 \\ 2b = 6 \\ b = \frac{6}{2} \\ b = 3$