Seudónimo Seudónimo
  • 13-04-2020
  • Mathematics
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solve for x: 3x+5 = 7x-39

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carstar205p0hsuy carstar205p0hsuy
  • 13-04-2020
3x+5=7x-39



X=11

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randomperson77
randomperson77 randomperson77
  • 13-04-2020

Answer:

x=11

Step-by-step explanation:

1. Write the equation.

3x+5=7x-39

2. Isolate the 3x from the 5.

3x+5=7x-39

    -5       -5

3x=7x-39-5

3. Move the 7x to the other side.

3x=7x-39-5

-7x  -7x

-4x=-39-5

4. Simplify.

-4x=-44

5. Isolate x by dividing by -4 on each side.

[tex]\frac{-4x}{-4}[/tex]=[tex]\frac{-44}{-4}[/tex]

6. Since the negatives cancel each other out and 44 divided by 4 is 11, the answer is positive 11.

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