0.8(2x+x)+3(7-4.1x)=x+21

Simple and best practice solution for 0.8(2x+x)+3(7-4.1x)=x+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 0.8(2x+x)+3(7-4.1x)=x+21 equation:


Simplifying
0.8(2x + x) + 3(7 + -4.1x) = x + 21

Combine like terms: 2x + x = 3x
0.8(3x) + 3(7 + -4.1x) = x + 21

Remove parenthesis around (3x)
0.8 * 3x + 3(7 + -4.1x) = x + 21

Multiply 0.8 * 3
2.4x + 3(7 + -4.1x) = x + 21
2.4x + (7 * 3 + -4.1x * 3) = x + 21
2.4x + (21 + -12.3x) = x + 21

Reorder the terms:
21 + 2.4x + -12.3x = x + 21

Combine like terms: 2.4x + -12.3x = -9.9x
21 + -9.9x = x + 21

Reorder the terms:
21 + -9.9x = 21 + x

Add '-21' to each side of the equation.
21 + -21 + -9.9x = 21 + -21 + x

Combine like terms: 21 + -21 = 0
0 + -9.9x = 21 + -21 + x
-9.9x = 21 + -21 + x

Combine like terms: 21 + -21 = 0
-9.9x = 0 + x
-9.9x = x

Solving
-9.9x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-9.9x + -1x = x + -1x

Combine like terms: -9.9x + -1x = -10.9x
-10.9x = x + -1x

Combine like terms: x + -1x = 0
-10.9x = 0

Divide each side by '-10.9'.
x = 0

Simplifying
x = 0

See similar equations:

| 2.50+2.00=10.50 | | 4a+6=6a-2 | | x^2+6x+10=15 | | 2x^2-15x-125=0 | | 3(x+3y)= | | 5y-[2(y+1)]=7y | | 3x=15+6 | | 18x+4x+29=139 | | -0.5x-2=-12 | | -7y+4=3y-6 | | 5f+(-3)f+14= | | -8+2x=22 | | 10(15x+16)=-890 | | 5.5y=-9 | | 5x+7x+3=39 | | (1+lnx)(2-lnx)=o | | t^2+9t-162=0 | | 37x-23=273 | | 6(7-3)+7(8-6)= | | 360-(3x+4)=x | | -18=3+3u | | 360-(3x+4)=99 | | 6x^3-8=40 | | -10(s+1)=-11 | | 36=2u+12 | | -.1x^2+.1x+3=0 | | 3-f=6f+6 | | 3/4d=1/2 | | -176=-31+5x | | f(x)=2/3x-10 | | N/8=1.7 | | 17-2/3 |

Equations solver categories