2x
2x plus 5x simplified is 7x.
18 + 7x - 12 + 5x = ?18 - 12+ 7x - 5x = ?6 + 2x = ?
Without parentheses, 3 x 4 = 12 2x + 12 factors to 2(x + 6)
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2
2x + 4x + 3 = 6x + 3
6x + 9 + 2x = 8x + 9
10
5x - 8a + 4a - 2x + a = 3x - 3a
x - 2x + 3 = 3 - x
3x + 7y
Simplify 4x + 3 = 2x + 8 2x = 5 x =2½