7
4x - 7 = 2x + 15 4x = 2x +222x = 22x = 11
x = 11/7 and y = 12/7
4x plus 7 plus 3x equals 19 plus xx = 2
If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7
3x+7=4x 7=4x-3x 7=x
4x+7=9x+7 -5x=0 x=0
3/4x - 4 = 7 + 1/2x 3/4x = 11 + 2/4x 1/4x = 11 x = 44
3x + 7 = -4x + 28 implies 7x + 7 = 28
x2-10 = 4x+11 x2-4x-10-11 = 0 x2-4x-21 = 0 (x+3)(x-7) = 0 x = -3 and x = 7
4x+7-8x=17-4x+7=17-4x=10x = -5/2
2x + 7 = 11 - 2x add 2x to both sides 4x + 7 = 11 subtract 7 from both sides 4x = 4 divide both sides by 4 x = 1