7+-(3x-2)=21

Simple and best practice solution for 7+-(3x-2)=21 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 7+-(3x-2)=21 equation:


Simplifying
7 + -1(3x + -2) = 21

Reorder the terms:
7 + -1(-2 + 3x) = 21
7 + (-2 * -1 + 3x * -1) = 21
7 + (2 + -3x) = 21

Combine like terms: 7 + 2 = 9
9 + -3x = 21

Solving
9 + -3x = 21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -3x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -3x = 21 + -9
-3x = 21 + -9

Combine like terms: 21 + -9 = 12
-3x = 12

Divide each side by '-3'.
x = -4

Simplifying
x = -4

See similar equations:

| -1=3x-22 | | 2(6-2x)=-1(4x-9) | | .33(4x-42)=3x | | 10t+3=t+15 | | m+5=3 | | 1.2x-0.8=0.8+1.2 | | 3x-7=3(x-3)+2 | | 20x+2x=6+x | | f(x)=x^3+x^2-7x-7 | | -6.8*2.1= | | 4+2x=454 | | 2x^2-4x+29=0 | | 0=2x^2-11x+51 | | 5z(z+7)= | | 10x+1x=3+x | | 3(-3x+5)-9x=36 | | 5(2+6)=77 | | 4X^2+15x+36=0 | | 6x-5=30 | | 3x-8=3(x-4)+1 | | 2(5x-3)-(7x-8)=7-(3x+2) | | 6x-10-3x=7+-2 | | 300-30w=-150 | | 6xy+9=69 | | 4-(1-2a)x=0 | | 50=-4y+2 | | 3(x-2)-(4x-7)=4(5x-1)-16 | | 7t-2b= | | 20x+2x=10+x | | 6(y-20)+4(10-2Y)=0 | | 10n^2=-85n-175 | | 20w-12=-45 |

Equations solver categories