</span>The slope-intercept form is <span><span>y=mx+b</span><span>y=mx+b</span></span>, where <span>mm</span> is the slope and <span>bb</span> is the y-intercept.<span><span>y=mx+b</span><span>y=mx+b</span></span>Since <span>xx</span> does not contain the variable to solve for, move it to the right side of the equation by subtracting <span>xx</span> from both sides.<span><span>−2y=−x+4</span><span>-2y=-x+4</span></span>Divide each term by <span><span>−2</span><span>-2</span></span> and simplify.<span><span>y=<span>x2</span>−2</span><span>y=<span>x2</span>-2</span></span>Rewrite in slope-intercept form.<span>y=<span>12</span>x−<span>2
</span></span>Using the slope-intercept form, the slope is <span><span>12</span><span>12</span></span>.<span>m=<span><span>1/2
2x+y=25 3x-y=20 solve by adding these two equations together 2x+3x=5x y-y=0 25+20=45 you get left with 5x=45 divide both sides by 5 x=9 then plug x=9 into one of the 1st equations to solve for y 2(9)+y=25 18+y=25 subtract y=7