3x + 2x - 8x + 2x = -x
Do you mean 2x²? Assuming this is the case: 2x² - 3x + 8x - 12 = 2x² + 5x - 12 = (2x - 3)(x + 4)
3x+11+5x=75(add 5x and 3x) 8x+11=75(-11) 8x=64(/ 8) x=8(ANSWER)
8x = 2x + 15 6x = 15 x = 15/6 = 2.5
If you mean: -3x-5x+1+8x-2x-9 then the result is -2x-8
3x + 2x - 8x + 2x = -x
5x+8x+3x-2x = 14x
-8x
7. 8x-40=2x+2 4x-20=1x+1 3x-21=0 3x=21 therefore x=7
-3x + 1
3x+2=2x+8x=63x+2 = 2x + 8; first subtract 2x from both sidesx+2=8; then subtract 2 from both sidesx=6
Do you mean 2x²? Assuming this is the case: 2x² - 3x + 8x - 12 = 2x² + 5x - 12 = (2x - 3)(x + 4)
8x - 2x - 2 = 3x + 2x + 4 Combine like terms: 6x - 2 = 5x + 4 Subtract 5x from both sides: x - 2 = 4 Add 2 to both sides: x = 6
x² + 8x = -3x² + 5 gives us 4x² + 8x - 5 = 0. This factorises, (2x - 1)(2x + 5) = 0; whence, either, 2x - 1 = 0, or 2x + 5 = 0; because, if the product of two numbers is zero, then one or other of them must equal zero. Therefore, x² + 8x = -3x² + 5, whenever x = ½ or x = -2½.
8x-7 plus 2x equals 6 plus 5x plus 2?
(3x+1)(2x+2)
6-3x = 5x-10x+2 4 = 8x-10x 4 = -2x x = -2