If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21x+5=55
We move all terms to the left:
21x+5-(55)=0
We add all the numbers together, and all the variables
21x-50=0
We move all terms containing x to the left, all other terms to the right
21x=50
x=50/21
x=2+8/21
| f(-3)=10(-3)-3 | | f(-3)=10(-3)-3 | | x3-10x2-31x=0 | | 1/5x+12=37 | | 1/5x+12=37 | | 1/5x+12=37 | | 8x^2-8=24 | | 8x^2-8=24 | | 15+–7c=–13 | | 15+–7c=–13 | | 14+4.5x=50 | | 85=p+39 | | 85=p+39 | | 8x^2-8=24 | | 50=14+4.5x | | k^2-12k=28 | | k^2-12k=28 | | d=12-(4+4d) | | 8x^2-8=24 | | 8x^2-8=24 | | y=2.82842712475 | | y=2.82842712475 | | y=2.82842712475 | | y=2.82842712475 | | 1125=9x³ | | 1125=9x³ | | w–2=–14 | | a+7/2+3a/5=1 | | a+7/2+3a/5=1 | | a+7/2+3a/5=1 | | a+7/2+3a/5=1 | | -8x-8=3(x-2)=-3x=2 |