Question

How do you solve `15z=25`?

Answer 1

See the entire solution process below:

Explanation:

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

`(15z)/color(red)(15) = 25/color(red)(15)`

`(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`