Answer:
x = 5
Explanation:
Simplify x/10
20/40 - x/10=0
simplify 1/2
1/2- x/10=0
Find the Least Common Multiple
The left denominator is :2
The right denominator is :10
Number of times each prime factor
appears in the factorization of:
Prime
Factor Left
Denominator Right
Denominator L.C.M = Max
{Left,Right}
2 1 1 1
5 0 1 1
Product of all
Prime Factors 2 10 10
Least Common Multiple: 10
Denote the Least Common Multiple by L.C.M
Denote the Left Multiplier by Left_M
Denote the Right Multiplier by Right_M
Denote the Left Deniminator by L_Deno
Denote the Right Multiplier by R_Deno
Left_M = L.C.M / L_Deno = 5
Right_M = L.C.M / R_Deno = 1
Rewrite the two fractions into equivalent fractions
Two fractions are called equivalent if they have the same numeric value.
For example : 1/2 and 2/4 are equivalent, y/(y+1)2 and (y2+y)/(y+1)3 are equivalent as well.
To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.
L. Mult. • L. Num. 5
————————— = ——
L.C.M 10
R. Mult. • R. Num. x
————————— = ——
L.C.M 10
Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
5 - (x) 5 - x
——— = —————
10 10
5 - x
——— = 0
10
When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
5-x
——— • 10 = 0 • 10
10
Now, on the left hand side, the 10 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
5-x = 0
Solve : -x+5 = 0
Subtract 5 from both sides of the equation :
-x = -5
Multiply both sides of the equation by (-1) : x = 5
x = 5