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Solve the simple equation and check the results : 4p + 7 = – 21 |
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Answer» Given 4p + 7 = – 21 ⇒ 4p + 7 – 7 = – 21 – 7 (Subtract 7 on both sides) ⇒ 4p = – 28 ⇒ 4p/4 = -28/4 (Divide by 4 on both sides) ⇒ p = – 7 Check: Substitute p = – 7 in 4p + 7 = – 21 LHS = 4p + 7 = 4(- 7) + 7 = – 28 + 7 = – 21 = RHS Hence verified. |
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