(x+12)+(x+17)=21

Simple and best practice solution for (x+12)+(x+17)=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 (x+12)+(x+17)=21 equation: 


Simplifying
(x + 12) + (x + 17) = 21

Reorder the terms:
(12 + x) + (x + 17) = 21

Remove parenthesis around (12 + x)
12 + x + (x + 17) = 21

Reorder the terms:
12 + x + (17 + x) = 21

Remove parenthesis around (17 + x)
12 + x + 17 + x = 21

Reorder the terms:
12 + 17 + x + x = 21

Combine like terms: 12 + 17 = 29
29 + x + x = 21

Combine like terms: x + x = 2x
29 + 2x = 21

Solving
29 + 2x = 21

Solving for variable 'x'.

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

Add '-29' to each side of the equation.
29 + -29 + 2x = 21 + -29

Combine like terms: 29 + -29 = 0
0 + 2x = 21 + -29
2x = 21 + -29

Combine like terms: 21 + -29 = -8
2x = -8

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

Simplifying
x = -4

See similar equations:

| 12*3-6/3= | | 0.2x-0.16666667(x-5)=6x | | 6(x-1)=9(x-2) | | -9x+5-18=2 | | 7x+-5=3x-5 | | 11x+16=4x+17 | | (t-6)(t-4)= | | 3(c+4)=8 | | y+7=y | | 0.5x-0.33333333(x-2)=3x | | 2.12x+12.72=25.44 | | -2y+10=-2(3y+11) | | -4n(n+7)+8(1-7n)= | | 0.5x-0.33(x-2)=3x | | 2.12x+12.82=25.44 | | X(x-1)=1 | | -32+8x=4(2x+8) | | 11b=132 | | 2(x+9)+9=27 | | 2(x+7)=28-3(6-x) | | 5(5x+2)-4(x+3)=2 | | 2(x+7)=-3(6-x) | | 1/2(s-14)-4=23 | | 2y=21-x | | -198=-11x | | 0.5x-0.333(x-2)=3x | | x+40=3x+60 | | 5(2x+4)-6(3y-5)=30 | | -2x+19=3x+2 | | (9)+(x-3)=3x-16 | | 5y+4(y-8)=4(y+1)-2 | | 4(x+1)+3=6x-1 |

Equations solver categories