4x - 8 = 5x
1) Add 8 to both sides.
4x - 8 (+ 8) = 5x (+ 8)
Becomes 4x = 5x + 8
2) Subtrate 5x from both sides.
4x (- 5x) = 8
Becomes -1x = 8
Reduced to -x = 8
3) Multiply both sides by -1.
Becomes x = -8
Chat with our AI personalities
-4x + 8 = -4 -4x + 8 - 8 = -4 -8 -4x = -12 -4x/-4 = -12/-4 x = 3
collect like terms and you get 4x + 5x + 8 - 3 ie 9x +5
20x2 - 27x -8 20 * -8 is -160, and -32 and 5 add to -27 20x2 - 32x + 5x - 8 4x(5x-8) + 1(5x-8) (4x + 1)(5x-8)
-3x-8+4x=17(-3x+4x)-8=17 ;combine like terms(x)-8=17 ;add 8 to both sidesx=25
4x - 7 = -15 4x = -8 x = -2