48-4x-13=4x+32+x First combine like terms So 48-13-4x=35-4x 4x+x+32=5x+32 Get the x by itself by subtracting the 32 from both sides 35-4x=5x+32 -32 -32 3-4x=5x +4x +4x 3=9x Divide both sides by 9 to get x by itself 3/9=x Simplify 1/3=x
x=7 y=4
y = 4x-3
3+6x = 4x+9 6x-4x = 9-3 2x = 6 x = 3
x=3
5x - 4x = 13 - 3 ie x = 10
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
= 3
Subtract 4 from both sides. 12x = 4x - 24 Subtract 4x from both sides. 8x = -24 x = -3 Check it. -36 + 4 = -12 - 20 -32 = -32 It checks.
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
If 4x + 7 = 3... then x must equal -1