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what is 8x - 5 = 3(x + 7)

 Apr 12, 2015

Best Answer 

 #1
avatar+1833 
+5

First, you distribut the x on the right side.

So, it would be 8x-5=3x+21. You want to get rid of one x on either side.

Take away the smaller one so you don't end up with negatives (which is harder to solve) So, 5x-5=21.

Add 5 to both sides. 5x=26.

Divide by 5. You get x=5 1/5. 

 Apr 12, 2015
 #1
avatar+1833 
+5
Best Answer

First, you distribut the x on the right side.

So, it would be 8x-5=3x+21. You want to get rid of one x on either side.

Take away the smaller one so you don't end up with negatives (which is harder to solve) So, 5x-5=21.

Add 5 to both sides. 5x=26.

Divide by 5. You get x=5 1/5. 

Mellie Apr 12, 2015

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