First, let's subtract both sides by 4:
|2x - 3| = 13
We can get two different equations from this:
2x - 3 = 13
and
2x - 3 = -13
So:
2x = 16
2x = -10
x = 8, x = -5
The solution set is {8, -5}
The first questions answer:
Given (0, -4), 4x - y = 7. I converted the equation into slope intercept form and I got: y = 4x - 7. Once I had gotten that I put (0, -4) and the equation into Point-Slope Form and solved it: y - (-4) = 4(x + 0), y + 4 = 4x, y = 4x - 4 is the slope intercept form of your equation and point :)
Hi there! I can help you with this.
6. Angle measurements:
x = 23
51 degrees
80 degrees
(2x + 3) = 49 degrees
8.
x = 30 degrees
3x = 90 degrees
2x = 60 degrees
x = 30 degrees
9.
x = 29 degrees
90 degrees
(2x - 2) = 56 degrees
(x + 5) = 34 degrees
B. the tip was 1/20 of the meal cost.