Question

What is the error in this solution

10 - 2x = 19x + 2-5x
10 -2x = 14x + 2
10 = 16x + 2
12 = 16x
3
X =
4
O 10-2x = 14x + 2
0 12 = 16x
O 10 = 16x + 2
O No error this is correct.

Answer 1

10-2x=19x+2-5x

We move all terms to the left:

10-2x-(19x+2-5x)=0

We add all the numbers together, and all the variables

-2x-(14x+2)+10=0

We get rid of parentheses

-2x-14x-2+10=0

We add all the numbers together, and all the variables

-16x+8=0

We move all terms containing x to the left, all other terms to the right

-16x=-8

x=-8/-16

x=1/2