3y - x = 6 (Note: the formula for slope-intercept form is y = mx + b) 3y = x + 6 (moving the x over to separate both variables) y = x/3 + 6/3 (after dividing both sides by 3) y = x/3 + 2 (simplify)
We can round 5.65 up to 6 and 3.4 down to 3. 3 * 6 = 18 now let's see how close our estimate is to the real answer 5.65 * 3.4 = 19.21 Our answer was pretty close to the real answer!
