(8,15,17)
(20,21,29)
(30,40,50)
Hope that help
Answer:
x = 12
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
5x + 18 = 7x - 6
<u>Step 2: Solve for </u><em><u>x</u></em>
- Subtract 5x on both sides: 18 = 2x - 6
- Add 6 to both sides: 24 = 2x
- Divide both sides by 2: 12 = x
- Rewrite: x = 12
<u>Step 3: Check</u>
<em>Plug in x to verify it's a solution.</em>
- Substitute: 5(12) + 18 = 7(12) - 6
- Multiply: 60 + 18 = 84 - 6
- Add/Subtract: 78 = 78
And we have our final answer!
Answer:
10
Step-by-step explanation:
x(x+80) = 30²
x²+80x=900
x²+80x-900=0
(x+90)(x-10) = 0
x= -90 or x= 10
x = 10 is the answer
Square root of 89 or 9.43398113
Answer:
Step-by-step explanation:
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