If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8x^2=9+7x
We move all terms to the left:
8x^2-(9+7x)=0
We add all the numbers together, and all the variables
8x^2-(7x+9)=0
We get rid of parentheses
8x^2-7x-9=0
a = 8; b = -7; c = -9;
Δ = b2-4ac
Δ = -72-4·8·(-9)
Δ = 337
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-\sqrt{337}}{2*8}=\frac{7-\sqrt{337}}{16} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{337}}{2*8}=\frac{7+\sqrt{337}}{16} $
| 3x+(2+x)=90 | | 96+84=y | | /4x=-3x-7 | | 5−1/4x=15−1/4x. | | 2x+221=12x-9 | | 98=84=y | | 5v+3=5v–5 | | -19=-8x-7+4 | | -6+10x=+12 | | 5x+6+8x=19 | | 5v+3=-12 | | 16x+64=10x-8 | | 3x+18=4x+6 | | 5/3y7/5=-4y-1/5 | | 8x+1-3=6 | | 3.5+z=-8 | | -6-4m-3=-17 | | -4(x-5)=-24+7x | | 4x-1+1=8 | | 6(2^4x)=21 | | 1+6x+3=10 | | 44=2(3x-4) | | -9.36=6+y/6 | | 3x/9=3=5 | | 16=n+3n | | -5a+13=-(2a-1) | | 11x-x=50 | | 7x-6=10x+3 | | 3/2x+8=100 | | x^2+4x-67=0 | | 6x+19=8x-11 | | 5x+-2+x=9+3x+10 |