Question

Take a look at these equations: 8-10x=7+5x and 4-10x=3+5x. What move did the student do to the first equation in order to turn it into the second equation? *

Answer 1

Subtracting 4 from both sides

Explanation:

Given the equation 8-10x=7+5x, the student made a move by subtracting 4 from both sides to arrive at the equation 4-10x=3+5x.

==>See:

8-10x = 7+5x

=>Subtract 4 from both sides

8 - 10x - 4= 7 + 5x - 4

=>Take like terms on both sides

(8 - 4) - 10x = (7 - 4) + 5x

4 - 10x = 3 + 5x

This is how the student arrived at the equation 4 - 10x = 3 + 5x