Question

Solve : x-4/7 -x+4/7 =x+3/7

Answer 1

Answer: x= -1

Step-by-step explanation:

Multiply each fraction by the necessary number to obtain a common denominator:

5(x-4/7)-7(x+4/5)=5(x+3/7)

(5x-20/35)-(7x+28/35)=(5x+15/35)

From here, since the denominators are unaffected by addition of fractions, we simply add the numerators as if they were a normal algebraic sum:

5x-20-7x+28=5x+15

If we then take our variables to one side, and our integers to another:

-20+28-15=5x-5x+7x

-7=7x

∴ x= -1

And to calculate what the sum would come out to, you simply substitute x= -1 into the equation.