2/3m-1/2m+4=7

Solution for 2/3m-1/2m+4=7 equation:

2/3m-1/2m+4=7

We move all terms to the left:

2/3m-1/2m+4-(7)=0


Domain of the equation: 3m!=0

m!=0/3

m!=0

m∈R



Domain of the equation: 2m!=0

m!=0/2

m!=0

m∈R


We add all the numbers together, and all the variables

2/3m-1/2m-3=0

We calculate fractions


4m/6m^2+(-3m)/6m^2-3=0

We multiply all the terms by the denominator


4m+(-3m)-3*6m^2=0

Wy multiply elements

-18m^2+4m+(-3m)=0

We get rid of parentheses

-18m^2+4m-3m=0

We add all the numbers together, and all the variables

-18m^2+m=0

a = -18; b = 1; c = 0;
Δ = b2-4ac
Δ = 12-4·(-18)·0
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-1}{2*-18}=\frac{-2}{-36}
=1/18
$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+1}{2*-18}=\frac{0}{-36}
=0
$