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4 years ago

What is the solution to the rational equation 1/5+3/x-5=9/20

1 answer:

5 0

Solve for x over the real numbers:
-5 + 1/5 + 3/x = 9/20

-5 + 1/5 + 3/x = 3/x - 24/5:
3/x - 24/5 = 9/20

Bring 3/x - 24/5 together using the common denominator 5 x:
-(3 (8 x - 5))/(5 x) = 9/20

Cross multiply:
-60 (8 x - 5) = 45 x

Expand out terms of the left hand side:
300 - 480 x = 45 x

Subtract 45 x + 300 from both sides:
-525 x = -300

Divide both sides by -525:
Answer: x = 4/7

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4 years ago

−13 = 5(1 + 4m) − 2m multi step equation show all steps pls

Radda [10]

Answer:

m = -1

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Write out equation

-13 = 5(1 + 4m) - 2m

Step 2: Parenthesis (distribute)

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Step 3: Combine like terms (m)

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Step 4: Subtract 5 on both sides

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Step-by-step explanation:

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