4x + 6 = 6x - 12-4x -4x6 = 2x - 12+12 +1218 = 2xx=9
3x - 8 = 7 so x = 5
5x + 3 = 6x + 1 Subtract 5x from both sides: 3 = x + 1 Subtract 1 from both sides: 2 = x
x2 + 6x - 2 = 0 x2 + 6x + 9 = 13 (x + 3)2 = 13 x + 3 = ± √13 x = -3 ± √13
Well, f(x) = 6x + 9 is a function of x {it passes the vertical line test}. but y = 6x + 9 is an equation {linear equation of two variables}
8x + 11 = 33 + 6x 8x - 6x = 33 - 11 2x = 22 x = 11
6x + 47 = 9x + 11 6x + 36 = 9x 36 = 3x 12 = x
6x-14x+16=27+11 answer: 4
y ≥ 11
8x-11+6x = -151 8x+6x = -151+11 14x = -140 x = -10
It is: 3x2+6x-11 = 0
x=4
x=4/3
8x-17=6x+112x=28x=14
0. 6x + 3 = 5x + 141. 6x = 5x + 11 [subtracting 3]2. x = 11 [subtracting 5x]
9x-11 = 6x+1 9x-6x = 1+11 3x = 12 x = 4
It is an equation and the value of x is 4