
Marcus R. answered 09/30/21
B.S. Engineering, 14 yrs math tutor experience, patient, honest
solve for y, then simplify
slope-intercept form is the form with slope m and the y-intercept b in it, y = mx + b
STEP 1: add 8x to both sides
-8x -13y +8x = -4 +8x
-8x -13y + 8x = -4 +8x
STEP 2: divide both sides by -13
(note: the right side has two terms, so just to be safe, first wrap it in parenthesis to avoid making a mistake)
-13y = (-4 + 8x)
-13y/-13 = (-4 + 8x)/-13
-13y/-13 = (-4 + 8x)/-13
y = (-4 + 8x)/-13
STEP 3: since this is now a fraction with a binomial in the numerator, break it up into two fractions with that common denominator
y = -4/-13 + 8x/-13
STEP 4: notice, there are two terms, the second term has the x in it
y = -4/-13 + 8x/-13
STEP 5: rearrange the terms to better match the slope intercept form, y = mx + b, then simplify
y = -8/13x + 4/13, where m = -8/13 and b = -8/13