4.2=9.2+3r-7.1

Simple and best practice solution for 4.2=9.2+3r-7.1 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 4.2=9.2+3r-7.1 equation:


Simplifying
4.2 = 9.2 + 3r + -7.1

Reorder the terms:
4.2 = 9.2 + -7.1 + 3r

Combine like terms: 9.2 + -7.1 = 2.1
4.2 = 2.1 + 3r

Solving
4.2 = 2.1 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
4.2 + -3r = 2.1 + 3r + -3r

Combine like terms: 3r + -3r = 0
4.2 + -3r = 2.1 + 0
4.2 + -3r = 2.1

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -3r = 2.1 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -3r = 2.1 + -4.2
-3r = 2.1 + -4.2

Combine like terms: 2.1 + -4.2 = -2.1
-3r = -2.1

Divide each side by '-3'.
r = 0.7

Simplifying
r = 0.7

See similar equations:

| 6/5x=12*7/5 | | j=n/m | | 5x^2+bx+20=20 | | 20u-8u= | | 6x^2+13x+1=-1 | | -4w=68 | | 3x^1/3-2=-4 | | 7x-4=-15 | | -4x+2x-3x+6=4+x+2x-1 | | 10c=-80 | | 3x+8y-1= | | h=bs | | (5x-2)+3(2x+6)=5x-2 | | 2y^2+12y-14=0 | | 24=18+2c | | -1k+19=-1 | | .2m-13=20.75 | | 188.4=4r*3.14 | | m/6-3 | | -1+19=-1 | | 66.7=4.7h+15 | | x/7-(-9)=8 | | r-t=e | | -6x+4=49 | | 90+3u=114 | | 2.5+2.5x=20 | | x/5-(-5)=4 | | -6x+5=-x+5 | | 6.4u-12=84 | | 7n+12=2.5-2 | | 1/4x^2=2x-15/2 | | 8-4-2= |

Equations solver categories