3-x-x=-7

Simple and best practice solution for 3-x-x=-7 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3-x-x=-7 equation:


Simplifying
3 + -1x + -1x = -7

Combine like terms: -1x + -1x = -2x
3 + -2x = -7

Solving
3 + -2x = -7

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -2x = -7 + -3

Combine like terms: 3 + -3 = 0
0 + -2x = -7 + -3
-2x = -7 + -3

Combine like terms: -7 + -3 = -10
-2x = -10

Divide each side by '-2'.
x = 5

Simplifying
x = 5

See similar equations:

| -18=2x+2x+2 | | 15y-22=158 | | (-15x^2-11x+23)-[(-7x^2-11x+7)-(11x^2-13x-5)]= | | [(3y^2+11y+4)-(-7y^2+8y+4)]-(6y^2-10y+12)= | | 2-3y=9 | | 6B+15=93 | | (10x^5-x^4+2x^2+3x)-(-3x^4-6x^3+3x^2-7x)= | | 1-3y=9 | | 3x=(1.20+x) | | (x^2-7x+8)-(8x^2-4x+3)= | | y=-9(-5) | | y=-9(-2) | | (9a^2+a-5)-(4a^2+9a-9)= | | -2y-19=4y+17 | | y=-9(-4) | | y=-9(4) | | (7a^2+2a+4)-(a^2-5a-9)= | | y=-9(2) | | 5(x-9)-7=-52 | | (8x^5-10x^2+3x)-(10x^5+7x^2-7)= | | 7x+4+4=(7x+4)2 | | (7x+4)=7 | | (-12u^6+20u^3)+(-2u^9+16u^6)= | | 3x+5+4=7x+4 | | 2x-6=x+8 | | 6(7x-3)+4=42x-14 | | 3z-9=4z-5 | | (-5b^7-2b^6)+(18b^5+15b^7)= | | 6-(4n+5)=1-5n | | (-12u^4+u^5)+(u^5+5u^4)= | | 7=0.2x+5/2 | | x+1=-3x+25 |

Equations solver categories