How do you solve 15z=2515z=25?

1 Answer
Feb 23, 2017

See the entire solution process below:

Explanation:

Divide each side of the equation by color(red)(15)15 to solve for zz while keeping the equation balanced:

(15z)/color(red)(15) = 25/color(red)(15)15z15=2515

(color(red)(cancel(color(black)(15)))z)/cancel(color(red)(15)) = (5 xx 5)/color(red)(5 xx 3)

z = (color(red)(cancel(color(black)(5))) xx 5)/color(red)(cancel(5) xx 3)

x = 5/3