minus 4 plus 9 = 5, so 5x
4x - 10 + 5x = 719x = 81x = 9
5x+12 = 4x-88 x = -100
5x - 18 = 4x + 7Add 18 to each side:5x = 4x + 25Subtract 4x from each side:x = 25
5x + 3 = 4xSubtract 3 from each side:5x = 4x - 3Subtract 4x from each side:x = -3
minus 4 plus 9 = 5, so 5x
If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
5x = 4x + 9 x = 9
33
5x - 4x = 13 - 3 ie x = 10
4x - 10 + 5x = 719x = 81x = 9
5x+12 = 4x-88 x = -100
5x+3y
5x+1
7x2 -4x -5x2 +2x = 2x2 -2x
5x - 18 = 4x + 7Add 18 to each side:5x = 4x + 25Subtract 4x from each side:x = 25