7/8b-32=3/4b+12

Solution for 7/8b-32=3/4b+12 equation:

7/8b-32=3/4b+12

We move all terms to the left:

7/8b-32-(3/4b+12)=0


Domain of the equation: 8b!=0

b!=0/8

b!=0

b∈R



Domain of the equation: 4b+12)!=0

b∈R


We get rid of parentheses

7/8b-3/4b-12-32=0

We calculate fractions


28b/32b^2+(-24b)/32b^2-12-32=0

We add all the numbers together, and all the variables

28b/32b^2+(-24b)/32b^2-44=0

We multiply all the terms by the denominator


28b+(-24b)-44*32b^2=0

Wy multiply elements

-1408b^2+28b+(-24b)=0

We get rid of parentheses

-1408b^2+28b-24b=0

We add all the numbers together, and all the variables

-1408b^2+4b=0

a = -1408; b = 4; c = 0;
Δ = b2-4ac
Δ = 42-4·(-1408)·0
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4}{2*-1408}=\frac{-8}{-2816}
=1/352
$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4}{2*-1408}=\frac{0}{-2816}
=0
$