7+2[-2x+3]=21

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


Simplifying
7 + 2[-2x + 3] = 21

Reorder the terms:
7 + 2[3 + -2x] = 21
7 + [3 * 2 + -2x * 2] = 21
7 + [6 + -4x] = 21

Combine like terms: 7 + 6 = 13
13 + -4x = 21

Solving
13 + -4x = 21

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -4x = 21 + -13

Combine like terms: 13 + -13 = 0
0 + -4x = 21 + -13
-4x = 21 + -13

Combine like terms: 21 + -13 = 8
-4x = 8

Divide each side by '-4'.
x = -2

Simplifying
x = -2

See similar equations:

| E+8=2 | | 7i=14 | | 4/7(14x-21)=7x+11 | | b/116b/11=35/11 | | 2-(t+2)+5t=6t+2 | | -97=-1+3(5k+7) | | -c/6+12=-7 | | -3/4x+6=55/16 | | 7x+3-10= | | -(8x-3)-(5x-5)+9=-12(x-1)-(4x+13)+3 | | (8x/10)-(7x/20) | | 8w+2(w-10)=0 | | (8x/10)-(7x-20) | | w/3-4=13 | | a+a+6=3 | | =4(3y-2y+6y) | | 3(x+2)+5x+6+x-1/x-2=7/x+3 | | 2(2t-4)+t=7 | | -4(3y-9)+2(2y+8)= | | 3a-10a=98 | | (3x+7)(9x^2+8x+9)= | | Q=18-3p | | 1.3a+6+0.7a=3 | | 6+7/2x=-15 | | -7=-9+n/8 | | -2(-10-8)-10=-7(10n+12) | | 2y+34=130 | | -16=7(p+3)+30 | | -7x+2(-6x-8)=62 | | -9y-3=13+2y | | h^2=a^2+b^2 | | 0.75x^2+7x+16=0 |

Equations solver categories