kevinvaldes444 kevinvaldes444
  • 21-08-2019
  • Mathematics
contestada

4x + 3x -7 =49 i need an answer.

Respuesta :

TheBlueFox
TheBlueFox TheBlueFox
  • 21-08-2019

Answer is provided in the image attached.

Ver imagen TheBlueFox
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gmany
gmany gmany
  • 21-08-2019

Answer:

x = 8

Step-by-step explanation:

[tex]4x+3x-7=49\qquad\text{combine like terms}\\\\(4x+3x)-7=49\\\\7x-7=49\qquad\text{add 7 to both sides}\\\\7x-7+7=49+7\\\\7x=56\qquad\text{divide both sides by 7}\\\\\dfrac{7x}{7}=\dfrac{56}{7}\\\\x=8[/tex]

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