3.4x+2.1=7.8-x

Simple and best practice solution for 3.4x+2.1=7.8-x 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 3.4x+2.1=7.8-x equation:


Simplifying
3.4x + 2.1 = 7.8 + -1x

Reorder the terms:
2.1 + 3.4x = 7.8 + -1x

Solving
2.1 + 3.4x = 7.8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
2.1 + 3.4x + x = 7.8 + -1x + x

Combine like terms: 3.4x + x = 4.4x
2.1 + 4.4x = 7.8 + -1x + x

Combine like terms: -1x + x = 0
2.1 + 4.4x = 7.8 + 0
2.1 + 4.4x = 7.8

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 4.4x = 7.8 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 4.4x = 7.8 + -2.1
4.4x = 7.8 + -2.1

Combine like terms: 7.8 + -2.1 = 5.7
4.4x = 5.7

Divide each side by '4.4'.
x = 1.295454545

Simplifying
x = 1.295454545

See similar equations:

| x+16x=64 | | 4x+4(8)=24 | | 2x-1=-4+x^2 | | 2+(a/4)=3/5 | | 100=6x+7y | | 3y+4-9y+7=14 | | -3(n+5)+(4n+2)=8 | | 7x^2+12x-30=0 | | -9u+7u=-4+16 | | 3/5x+12=4/5x-7 | | 4/5x-6=-1/5x-7 | | 7/8=56/I | | -16-n=-15 | | 77-(4x+13)=4(x+7)+x | | 2x-1=4-x^2 | | 6x=3y+1 | | 2t-t=2 | | -8x-5x=-15x-17-6x | | 2x+3/4+6/416.75 | | 3x+29/7+x+18/5=9 | | 2x-1=4x-x^2 | | 6/(4+2w)=-2/(w-10) | | 3a-5(7a-5)=-135 | | 7(x+9)-2=24-3(6-2x)+51 | | -29=5(2n-1)+2n | | 3=r_10 | | (-6x+7)/5+4/5=-4x/7 | | 18a^2+24ab+8b^2= | | 11z-3(z-9)=123 | | 5/12=y/24 | | x-4/7 | | 9x+12=6x-30 |

Equations solver categories