7x+17 = 45 7x = 45-17 7x = 28 x = 4
-7x = -42 7x = 42 x = 6
5x + 17 = 7x - 123 123 + 17 = 7x - 5x 140 = 2x x = 140 ÷ 2 x = 70
-4 = 17x so x = -4/17
7x+x = 8x
7x+17 = 45 7x = 45-17 7x = 28 x = 4
-7x = -42 7x = 42 x = 6
5x + 17 = 7x - 123 123 + 17 = 7x - 5x 140 = 2x x = 140 ÷ 2 x = 70
7x + 9 = 6x + 17 7x - 6x = 17 -9 x = 8
-4 = 17x so x = -4/17
7x+x = 8x
103
x = -3 y = -2
3x + 17 + 5x = 7x + 10Combine (add) the 'x'-terms on the left side of the equation:8x + 17 = 7x + 10Subtract 17 from each side:8x = 7x - 7Subtract 7x from each side:x = -7
7x+7=28x 28x-7x=7 21x=7 x=3
7x is still the slope, no matter what x equals.
If x=2, then 7x = 14 and if y=5 then 4y=20.