If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7/8x-x=18
We move all terms to the left:
7/8x-x-(18)=0
Domain of the equation: 8x!=0We add all the numbers together, and all the variables
x!=0/8
x!=0
x∈R
-1x+7/8x-18=0
We multiply all the terms by the denominator
-1x*8x-18*8x+7=0
Wy multiply elements
-8x^2-144x+7=0
a = -8; b = -144; c = +7;
Δ = b2-4ac
Δ = -1442-4·(-8)·7
Δ = 20960
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{20960}=\sqrt{16*1310}=\sqrt{16}*\sqrt{1310}=4\sqrt{1310}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-144)-4\sqrt{1310}}{2*-8}=\frac{144-4\sqrt{1310}}{-16} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-144)+4\sqrt{1310}}{2*-8}=\frac{144+4\sqrt{1310}}{-16} $
| (-5x+2)+2x+5=-2 | | 3x-24=-3x+28 | | 3x+4=x+I | | 10x-45=5x+80 | | X+2x+X/X+1=2 | | 3x-6x+2=-8x+2+5x | | 6=96/y | | 4b=3b-3 | | 25x=20×2x | | 2-x+3=4 | | 5-13c=4c+39 | | 5-x3x=17 | | 7=+3v-14 | | 17y-47+27=4y-18 | | 2z-5.8=1.2 | | 91=73x+1 | | -3x-2=-2x+8-x | | 65=-10y–3y | | (13x-7)=100 | | 7(x+5)+2(6-x)=12 | | 35=-16p | | -3k-2=-2k+8-k | | 231=7+48m-8 | | f(6)=-(6+5)^2 | | -58m-6=270 | | -2(2c-4)=1/3(12c+24) | | -5j+-16=-71 | | -56=4-7x-4 | | 0.8(4-a)=5 | | (5z/8)-(1/3)=2/5 | | 17.88=4w+2 | | 28-14z=-24z+12z |