2x+3 = 7 2x = 7-3 2x = 4 x = 2
3x+4 = 2x-3 3x-2x = -3-4 x = -7
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
2x + 3 = 9x Subtract 2x from both sides: 3 = 7x Divide both sides by 7: 3/7 = x
2x + 2/3= 5/3 2x= 3/3 2x=1 x=1/2
3
2x+3 = 7 2x = 7-3 2x = 4 x = 2
4x + 3 = -3 + 2x + 14 2x + 3 = -3 +14 2x + 3 = 11 2x = 8 x=4
2x+3 = -11 2x = -11-3 2x = -14 x = -7
3x+4 = 2x-3 3x-2x = -3-4 x = -7
(3,3)
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
3x-2 = 2x+3 3x-2x = 3+2 x = 5
2x + 3 = 9x Subtract 2x from both sides: 3 = 7x Divide both sides by 7: 3/7 = x
2x + 3 = x 2x + 3 - 3 = x - 3 2x = x - 3 2x - x = x - 3 - x x = -3
2x+3=9x 3=9x-2x 3=7x x=3/7
2x + 2/3= 5/3 2x= 3/3 2x=1 x=1/2