richisolano14
21.10.2020 •
Mathematics
7(p + 3) + 9 = 5(p – 2) – 3p What is P
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Ответ:
p = -8
Step-by-step explanation:
Step 1: Write equation
7(p + 3) + 9 = 5(p - 2) - 3p
Step 2: Solve for p
Distribute: 7p + 21 + 9 = 5p - 10 - 3pCombine like terms: 7p + 30 = 2p - 10Subtract 2p on both sides: 5p + 30 = -10Subtract 30 on both sides: 5p = -40Divide both sides by 5: p = -8Step 3: Check
Plug in x to verify it's a solution.
Substitute: 7(-8 + 3) + 9 = 5(-8 - 2) - 3(-8)Parenthesis: 7(-5) + 9 = 5(-10) + 24Multiply: -35 + 9 = -50 + 24Add: -26 = -26Ответ:
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Step-by-step explanation: