400=(r-20)8

Simple and best practice solution for 400=(r-20)8 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 400=(r-20)8 equation:


Simplifying
400 = (r + -20) * 8

Reorder the terms:
400 = (-20 + r) * 8

Reorder the terms for easier multiplication:
400 = 8(-20 + r)
400 = (-20 * 8 + r * 8)
400 = (-160 + 8r)

Solving
400 = -160 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
400 + -8r = -160 + 8r + -8r

Combine like terms: 8r + -8r = 0
400 + -8r = -160 + 0
400 + -8r = -160

Add '-400' to each side of the equation.
400 + -400 + -8r = -160 + -400

Combine like terms: 400 + -400 = 0
0 + -8r = -160 + -400
-8r = -160 + -400

Combine like terms: -160 + -400 = -560
-8r = -560

Divide each side by '-8'.
r = 70

Simplifying
r = 70

See similar equations:

| 26.4=.5r(6) | | (3a*3a*3a*3a)*(5a*5a)= | | 5+3(5X-6)=5-4(2X+1) | | 6x+58=10x-14 | | Y=4uv-3v | | 3(2x+5)-4(x+3)= | | 9a-3-13a+2=-4-4a+3 | | 4+35x=28x+13 | | 5(2i+3k)= | | 4(z+3)=10z | | 4(7+3h)= | | 3x+3/7-1/7=5/7 | | F(x)12x^2-16x+5= | | 12474=47x+17x | | 12x^2-16x+5= | | .4x+x=18 | | .6(X+300)=.65X-195 | | 3.4x-2=-3.2 | | 2x*2x-12x+11=0 | | 4x+5=7x+5-3x | | 7x-4x=5x-8 | | 8x+23-6x+23=4 | | 467=p/7 | | 2/10y+10=10 | | 5x-7=x+8 | | 11x-218=4x-8 | | -2(3x-2)=-6 | | 5x+3/7-2x-1/7=5/7 | | 3m-5=4m+2 | | 3-3x= | | 0.76+0.26t=2.63t-0.82 | | 7+78x=52x+31 |

Equations solver categories