How do you write the equation in slope intercept form given -5x + 7y = 15x+7y=1?

1 Answer
Feb 7, 2017

y = color(red)(5/7)x + color(blue)(1/7)y=57x+17

Explanation:

The slope-intercept form of a linear equation is: y = color(red)(m)x + color(blue)(b)y=mx+b

Where color(red)(m)m is the slope and color(blue)(b)b is the y-intercept value.

We need to solve for yy as follows:

color(red)(5x) - 5x + 7y = color(red)(5x) + 15x5x+7y=5x+1

0 + 7y = 5x + 10+7y=5x+1

7y = 5x + 17y=5x+1

(7y)/color(red)(7) = (5x + 1)/color(red)(7)7y7=5x+17

(color(red)(cancel(color(black)(7)))y)/cancel(color(red)(7)) = (5x)/7 + 1/7

y = color(red)(5/7)x + color(blue)(1/7)