Question #a3b6e

3 Answers
Oct 3, 2017

x = 15

Explanation:

-3x+57=x-3

Take the terms with variable x on left hand side of the equation and bring the others on right hand side:

Apply transposition method:

-3x-x=-3-57

-4x = -60

Dividing both sides by -4:

x = 15

Oct 3, 2017

add 3 to both sides:

-3x+60=x

...then add 3x to both sides:

60 = 4x

divide each side by 4:

15 = x

BAM.

GOOD LUCK!

Oct 3, 2017

x=15

Explanation:

First we subtract 57 from both sides.
-3x+57color(blue)-color(blue)57=x-3color(blue)-color(blue)57
Therefore, -3x=x-60.

Subtract x from both sides:
-3xcolor(blue)-color(blue)x=x-60color(blue)-color(blue)x and therefore, -4x=-60. Divide both sides by -4#:

(-4x)/(-4)=(-60)/(-4)

Simplify:
x=15