If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4/9x+1/5x=86
We move all terms to the left:
4/9x+1/5x-(86)=0
Domain of the equation: 9x!=0
x!=0/9
x!=0
x∈R
Domain of the equation: 5x!=0We calculate fractions
x!=0/5
x!=0
x∈R
20x/45x^2+9x/45x^2-86=0
We multiply all the terms by the denominator
20x+9x-86*45x^2=0
We add all the numbers together, and all the variables
29x-86*45x^2=0
Wy multiply elements
-3870x^2+29x=0
a = -3870; b = 29; c = 0;
Δ = b2-4ac
Δ = 292-4·(-3870)·0
Δ = 841
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{841}=29$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(29)-29}{2*-3870}=\frac{-58}{-7740} =29/3870 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(29)+29}{2*-3870}=\frac{0}{-7740} =0 $
| 50=(2x) | | 10x-4x+112=10x+48 | | 304=-16n | | 2-6y=4-7y | | 2.7x=9 | | 16=4(-c-5) | | 10=-6-4n | | 20=7+b+7 | | (x+3)(6x+1)=0 | | m+2.8=1.3m | | 20=-(n+4) | | q-(11q)^(1/2)+30=0 | | 1÷2x+7=2x-3 | | x+(x*3+12)=180 | | 1/2+7=2x-3 | | 4(5x+1/4)=61 | | 0.125x=8^0.5 | | 9x=4+116=9x+80 | | 8x-3(x=4) | | 6.8–4.2b=5.6b–3 | | 8/3c+-2=2/3c+12 | | 6.8–4.2b=5.6b– | | 6.8–4.2b=5.6b–3 23. | | 50-6x=80-26x | | 1/5x+1/3=-2(3/4x+2) | | -(y+3)=-9 | | -120=1n+7(1n-8) | | 3x^2+2x=1240 | | 10x-18=136 | | –2(j–3)=–2j+6 | | -5w+3+6w=6-1 | | -90=2(4+7x) |