3x-21=2x+4

Simple and best practice solution for 3x-21=2x+4 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 3x-21=2x+4 equation:


Simplifying
3x + -21 = 2x + 4

Reorder the terms:
-21 + 3x = 2x + 4

Reorder the terms:
-21 + 3x = 4 + 2x

Solving
-21 + 3x = 4 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-21 + 3x + -2x = 4 + 2x + -2x

Combine like terms: 3x + -2x = 1x
-21 + 1x = 4 + 2x + -2x

Combine like terms: 2x + -2x = 0
-21 + 1x = 4 + 0
-21 + 1x = 4

Add '21' to each side of the equation.
-21 + 21 + 1x = 4 + 21

Combine like terms: -21 + 21 = 0
0 + 1x = 4 + 21
1x = 4 + 21

Combine like terms: 4 + 21 = 25
1x = 25

Divide each side by '1'.
x = 25

Simplifying
x = 25

See similar equations:

| 0.5b=36 | | 6(y+8)=5y-5 | | -43(x-74)=x+(-64) | | M=B*(1+rt) | | -26(x-22)=90x | | 904.40=0.08x+7.25 | | 20=n-4 | | 0125*5= | | x^3+10x^2+19x-30=0 | | 1000/8%= | | 4.05/7x+9=40 | | 3x+-7(17+5x)=147 | | 13x-6=33 | | 40psquared-90=0 | | 0.5+3x=17-3x | | 18000=h+100+h | | -2=m-12 | | a-29=5 | | -40=-5+p | | 3/2/x-4/1/10=-7/10 | | 21c+1-19c=11 | | 0.5*3x=17-3x | | 418=-22+a | | 15*25*8.4= | | 32/x-41/10=-7/10 | | -4n-4-9n=5-13n+1 | | 6x+12=-78-9 | | 2=-11+k | | lny=ln(x)+C | | -x/3+6=4 | | 3x-7(5x+17)=147 | | -4x=-x^2-3 |

Equations solver categories