If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2/7x+1/5x=51
We move all terms to the left:
2/7x+1/5x-(51)=0
Domain of the equation: 7x!=0
x!=0/7
x!=0
x∈R
Domain of the equation: 5x!=0We calculate fractions
x!=0/5
x!=0
x∈R
10x/35x^2+7x/35x^2-51=0
We multiply all the terms by the denominator
10x+7x-51*35x^2=0
We add all the numbers together, and all the variables
17x-51*35x^2=0
Wy multiply elements
-1785x^2+17x=0
a = -1785; b = 17; c = 0;
Δ = b2-4ac
Δ = 172-4·(-1785)·0
Δ = 289
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{289}=17$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(17)-17}{2*-1785}=\frac{-34}{-3570} =1/105 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(17)+17}{2*-1785}=\frac{0}{-3570} =0 $
| 128(8)=3x | | -8(n+4)=22+n | | a÷3+8=16 | | 3(x+1)/4=3/4x-5 | | -2(3x-5)-3x+5=-48 | | 7-5x-(10-(6x)=0 | | 1/2e-3=3/4e+11 | | 3x+3/4=3/4x-5 | | 32n+13=6n | | -1+5/2e=13 | | 3n−10=9n−29 | | d/4=18 | | 6-8w=30-4w | | 2(x+1)+3=3(x−1) | | 9k=9 | | -9.7=-2.2+w/3 | | -3+n=8(-2n+6) | | 2p+5/3=p-2/7 | | 12s=96 | | z/5=-21 | | -7/5e=-3 | | -2.5+3.5x=1.5x+16 | | -2/3e+7=-15 | | -9+13x-2=3x+9+4x | | 20-3m=-3(4m+11) | | -3+x=-x+15 | | 2w+8.4=18 | | 3/x-5-20/x^2-25=2/x+5 | | 2(y−2)=−6 | | 4u+13=89 | | 11+8=4x-6 | | -24-8a=8(5-5a) |