This simplifies to 6x = -3, so x = -0.5 Check: (3 x -0.5) + 2 = (9 x -0.5) + 5 ie -1.5 + 2 = -4.5 + 5 0.5 = 0.5 QED
3x + 2 = 9x + 5 3x - 9x + 2 - 2 = 9x - 9x + 5 - 2
-6x = 3 -6x/-6 = 3/-6 x = -1/2 or x = -0.5
9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5
X equals 9.
x=6
9x + 3 - 6x - 2 = 3x + 1
9x + 2 = 12x + 14 -3x = 12 x = -4
9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5
No because they don't have the same slope (9x & 3x)
3x + 6x +1 = 10 9x = 10 - 1 9x = 9 x = 1
X equals 9.
x=2
x=6
9x + 3 - 6x - 2 = 3x + 1
9x + 2 = 12x + 14 -3x = 12 x = -4
12x + 131 = 189 + 3x 12x - 3x + 131 - 189 = 0 9x - 58 = 0 9x = 58 x = 6,44444
3x+2y = 0 -9x+y = 42 => y = 42+9x Substitute the bottom rearranged equation into the top equation: 3x+2(42+9x) = 0 3x+82+18x = 0 21x = -84 Divide both sides by 21 to find the value of x: x = -4 Substitute the value of x into the original equations to find the value of y: So: x = -4 and y = 6
-3x+9x can be simplified to 6x
6x+11=92-3x +3x +3x 9x+11=92 -11 -11 9x=81 divide by 9 x=9