Question

-3+7x-9+8x=54 what are the steps to solve this problem

Answer 1

9514 1404 393

Answer:

  x = 4.4

Step-by-step explanation:

This equation has x-terms on one side of the equal sign and constants on both sides.

First, collect terms.

  15x -12 = 54

Then add the opposite of the constant that is on the same side as the x-term.

  15x = 66

Now, divide by the coefficient of x.

  x = 66/15 = 22/5

  x = 4.4

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Check

  -3 +7(4.4) -9 +8(4.4) = 54

  -3 + 30.8 -9 +35.2 = 54 . . . . true

Answer 2

Answer x=22/5 or 4.4

Step-by-step explanation:

1. Combine like terms

15x-12=54

2. Add 12 to both sides

15x=66

3. Divide both sides by 15

15x/15=66/15

4. x=22/5 or 4.4