bigbrogamer
15.11.2020 •
Mathematics
3(-2 - n) = -9 -4n answer
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Ответ:
n = -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
3(-2 - n) = -9 - 4n
Step 2: Solve for n
Distribute 3: -6 - 3n = -9 - 4nAdd 4n to both sides: -6 + n = -9Add 6 to both sides: n = -3Step 3: Check
Plug in n to verify it's a solution.
Substitute: 3(-2 - -3) = -9 - 4(-3)Simplify: 3(-2 + 3) = -9 - 4(-3)Add: 3(1) = -9 - 4(-3)Multiply: 3 = -9 + 12Add: 3 = 3Ответ:
neet
Step-by-step explanation: