Solve the equation- 1 - m - 7 = 5 3
Question
Answer:
1/3m-7=5
One solution was found :
m = 36
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
1/3*m-7-(5)=0
Step by step solution :
Step 1 :
1
Simplify β
3
Equation at the end of step 1 :
1
((β β’ m) - 7) - 5 = 0
3
Step 2 :
Rewriting the whole as an Equivalent Fraction :
2.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
7 7 β’ 3
7 = β = βββββ
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
2.2 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:
m - (7 β’ 3) m - 21
βββββββββββ = ββββββ
3 3
Equation at the end of step 2 :
(m - 21)
ββββββββ - 5 = 0
3
Step 3 :
Rewriting the whole as an Equivalent Fraction :
3.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
5 5 β’ 3
5 = β = βββββ
1 3
Adding fractions that have a common denominator :
3.2 Adding up the two equivalent fractions
(m-21) - (5 β’ 3) m - 36
ββββββββββββββββ = ββββββ
3 3
Equation at the end of step 3 :
m - 36
ββββββ = 0
3
Step 4 :
When a fraction equals zero :
4.1 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.
Here's how:
m-36
ββββ β’ 3 = 0 β’ 3
3
Now, on the left hand side, the 3 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
m-36 = 0
Solving a Single Variable Equation :
4.2 Solve : m-36 = 0
Add 36 to both sides of the equation :
m = 36
One solution was found :
m = 36
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