If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5x^2-4x=3x-21x^2
We move all terms to the left:
5x^2-4x-(3x-21x^2)=0
We get rid of parentheses
5x^2+21x^2-3x-4x=0
We add all the numbers together, and all the variables
26x^2-7x=0
a = 26; b = -7; c = 0;
Δ = b2-4ac
Δ = -72-4·26·0
Δ = 49
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{49}=7$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-7}{2*26}=\frac{0}{52} =0 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+7}{2*26}=\frac{14}{52} =7/26 $
| 2(3x+7)-4(5x+9)-6=0 | | 32x-58=12x+14 | | 8d-5=3d+10 | | 5/4=−4c+41 | | 7x+11=4x-1 | | a/45=7/15 | | 144x+7=89 | | 2x+4(2x+7)=3(x+4) | | (y+4)(y+2)=24 | | x+x+51=100 | | 2x=12=38 | | ((200x-1600)/(200x))=0.3 | | 3x/4=99 | | 5x-7=-14-2 | | 4/3+x+x=62/15 | | 5y-3=20y | | x/2+3/4=7/8 | | x2+32x+86=0 | | 21y+6=9y= | | X+4x=0.42 | | 11x+5=30 | | 3x+39+(4x-6)=180 | | 50y+67=20 | | 6f+2f-3f=5f | | x2+51=150 | | (5x+40)+(2x)=90 | | 2a-3=57 | | 4/(2-x)+x=4 | | 2x+50-x=150 | | 3a2=-5 | | 4-2x+13=10-9x+9 | | 2.7-(4.2-1.2x)=6.3 |