7x - 2 = 4x + 9 3x - 2 = 9 3x = 11 x = 11/3
7x+8
3x+4-7x=5-4x+2 -4x+4=7-4x Adding 4x to each side yields: 4=7, which is not true, so there is no answer (a null set)
-3x + 2 = -7x - 22 add 7x to both sides 4x + 2 = -22 subtract 2 from both sides 4x = -24 divide by 4 x = -6 ■
-3x + 2 = -7x - 22 add 7x to both sides 4x + 2 = -22 subtract 2 from both sides 4x = -24 divide by 4 x = -6
3x + (-2 + 4x) = -2 + 7x
(3x+2)-(5+7x) = 3x+2-5-7x = -4x-3 3x+2 is -4x-3 times greater than 5+7x.
7x - 2 = 4x + 9 3x - 2 = 9 3x = 11 x = 11/3
7x+8
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
7x+2 = 3x-2 7x-3x = -2-2 4x = -4 x = -1
3x+4-7x=5-4x+2 -4x+4=7-4x Adding 4x to each side yields: 4=7, which is not true, so there is no answer (a null set)
-3x + 2 = -7x - 22 add 7x to both sides 4x + 2 = -22 subtract 2 from both sides 4x = -24 divide by 4 x = -6 ■
-3x + 2 = -7x - 22 add 7x to both sides 4x + 2 = -22 subtract 2 from both sides 4x = -24 divide by 4 x = -6
(4x ^2 + 3) + (3x ^2 + 8) = ( 4x^2 + 3x^2 ) + (3+8) = 7x^2 + 11
The 3x is cubed and the 4x is squared
2x2-4x-3x+6 2x2-7x+6 (2x+3)(x+2)