7x-5x=8 2x=8 x=4
The 7x and the 5x are like terms. This means that you can add them up. Think about it, 7 x's plus 5x's equals 12x's. From there, you can divide 12 from both sides of the equation, and you will get that x = 2.
142
5x+2x-3y+y = (5+2)x+(-3+1)y = 7x - 2y
7x + 12 = 5x + 2 Subtract '12' from both sides Hence 7x = 5x -10 Subtract '5x' from both sides. 2x = -10 Divide both sides by '2' Hence x = -5 .
18 + 7x - 12 + 5x = ?18 - 12+ 7x - 5x = ?6 + 2x = ?
2x plus 5x simplified is 7x.
1 - 5x + 7x is an expression, not an equation (no equals sign), so you cannot solve for x. You can, however simplify (combine like terms) and get 1 + 2x.
7x = 5+5x 7x-5x = 5 2x = 5 x = 2.5
x=6
7x-5x=8 2x=8 x=4
7x + 8 = 5x + 327x = 5x + 242x = 24x = 12hope this helps
the simplest form of 5x + 3y +2x - 6y is 7x-3y
5x + 2x - 7 = 0 Simplify 7x - 7 = 0 Add 7 to both sides 7x - 7 + 7 = 0 + 7 7x = 7 divide both sides by 7 x=1
x=12
5x + 17 = 7x - 123 123 + 17 = 7x - 5x 140 = 2x x = 140 ÷ 2 x = 70
i will simplify: 5 times x times 6= 7 times x - 16