Solution - Adding, subtracting and finding the least common multiple
Step by Step Solution
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
3/7*w-11-(-4/7*w)=0
Step by step solution :
Step 1 :
4
Simplify —
7
Equation at the end of step 1 :
3 4
((—•w)-11)-(0-(—•w)) = 0
7 7
Step 2 :
3
Simplify —
7
Equation at the end of step 2 :
3 -4w
((— • w) - 11) - ——— = 0
7 7
Step 3 :
Rewriting the whole as an Equivalent Fraction :
3.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 7 as the denominator :
11 11 • 7
11 = —— = ——————
1 7
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 :
3.2 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:
3w - (11 • 7) 3w - 77
————————————— = ———————
7 7
Equation at the end of step 3 :
(3w - 77) -4w
————————— - ——— = 0
7 7
Step 4 :
Adding fractions which have a common denominator :
4.1 Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
(3w-77) - (-4w) 7w - 77
——————————————— = ———————
7 7
Step 5 :
Pulling out like terms :
5.1 Pull out like factors :
7w - 77 = 7 • (w - 11)
Equation at the end of step 5 :
w - 11 = 0
Step 6 :
Solving a Single Variable Equation :
6.1 Solve : w-11 = 0
Add 11 to both sides of the equation :
w = 11
One solution was found :
w = 11How did we do?
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