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-x-(13+4x) = -3(5-9x)+2

1 Answer

1 vote

Answer:

x = 0

Explanation:

Step 1: Distribute the negative sign and the -3:

-x + (-1 * 13 - 1 * 4x) = (-3 * 5 - 3 * -9x) + 2

-x - 13 - 4x = -15 + 27x + 2

Step 2: Combine like terms on the left-hand and right-hand side:

(-x - 4x) - 13 = 27x + (-15 + 2)

-5x - 13 = 27x -13

Step 3: Add 13 to both sides:

(-5x - 13 = 27x - 13) + 13

-5x = 27x

Step 4: Add 5x to both sides:

(-5x = 27x) + 5x

0 = 32x

Step 5: Divide both sides by 32 to solve for x:

(0 = 32x) / 32

0 = x

Optional Step 6: Check the validity of the answer by substituting 0 for x and checking whether we get the same answer on both sides of the equation:

-0 - (13 + 4 * 0) = -3(5 - 9 * 0) + 2

-(13) = -3(5) + 2

-13 = -15 + 2

-13 = -13

Thus, our answer is correct.

answered
User Aneesh Sivaraman
by
8.3k points

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