If it's not what You are looking for type in the equation solver your own equation and let us solve it.
250=2.5(r+r+20)
We move all terms to the left:
250-(2.5(r+r+20))=0
We add all the numbers together, and all the variables
-(2.5(2r+20))+250=0
We calculate terms in parentheses: -(2.5(2r+20)), so:We get rid of parentheses
2.5(2r+20)
We multiply parentheses
5r+50
Back to the equation:
-(5r+50)
-5r-50+250=0
We add all the numbers together, and all the variables
-5r+200=0
We move all terms containing r to the left, all other terms to the right
-5r=-200
r=-200/-5
r=+40
| 12x−40=20 | | 9x-2(x+5)=8 | | 4x^2+3x+20x=3 | | 3x+5+x=6+2x+13 | | -2=2(4x+3) | | 2x+43=3(2x+5) | | 4(x+4)=3x+12 | | -36=4(x-5) | | b-3-5=15 | | -3x-37=2(2x-4)+6 | | y(5)+y(4)+13y(3)+13y′′+36y′+36y=0 | | -3x-17=1 | | 20b=80 | | 1/5*(x-10)=9 | | 13x÷5-5x=13 | | 30=3(2x-2) | | 2(4x+4)=5x-22 | | 126=x^2+5x-24 | | x+9x+90=180 | | 6.5h=52 | | 6p+3=42 | | 12x=4x+37 | | 2÷5×x=7/9 | | 0.5x^2=54 | | n+30=165 | | .75(3-x)=2.10 | | 3(.75-x)=2.10 | | 81/5=-9x | | x2-10x+5=0 | | X²-x+24=0 | | 20(m+4)=160 | | -1/2=-2/5v-2/7 |