105k views
5 votes
Solve for x.
x + 2/7 = 5x + 7/9

User Ahmadh
by
7.2k points

1 Answer

4 votes

Final answer:

To solve the equation x + 2/7 = 5x + 7/9, we combined like terms, found a common denominator, eliminated the fractions, and then solved for x to find the solution x = -31/252.

Step-by-step explanation:

To solve the equation x + 2/7 = 5x + 7/9, first, we want to get all the x terms on one side, and to do this, we need to isolate x. We can subtract 5x from both sides:

x - 5x + 2/7 = 7/9

Combining like terms, we get:

-4x + 2/7 = 7/9

Next, we want to get rid of the fractions by finding a common denominator, which would be 63 in this case. We multiply each term by 63 to eliminate the denominators:

63(-4x) + 63(2/7) = 63(7/9)

-252x + 18 = 49

Now, subtract 18 from both sides:

-252x = 49 - 18

-252x = 31

Finally, divide both sides by -252 to solve for x:

x = 31/-252

After simplifying the fraction, we get the solution:

x = -31/252

User Alangab
by
7.1k points