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Solve the simple equation and check the results : 9 (a + 1) + 2 = 11 |
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Answer» Given 9(a + 1) + 2 = 11 ⇒ 9(a + 1) + 2 – 2 = 11 – 2 (Subtract 2 on both sides) ⇒ 9(a + 1) = 9 ⇒ \(\frac {9(a+1)}{9} = \frac 99\) (Divide by 9 on both sides) ⇒ a + 1 = 1 ⇒ a + 1 – 1 = 1 – 1 (Subtract 1 on both sides) ⇒ a = 0 Check: Substitute a = 0 in 9(a + 1) + 2 = 11 LHS = 9(a + 1) + 2 = 9(0 + 1) + 2 = 9(1) + 2 = 9 + 2 = 11 = RHS Hence verified. |
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