Question

Need help on how to cancel out denominators if they're different, please explain thoroughly, thanks!

Answer 1

You can make a common denominator, then multiple the top by said denominator, then cross it out - because they are the same

Answer 2

Answer:

x = 2 12/13

Step-by-step explanation:

(x - 4)/7 = (8 - 3x)/5

A fraction is the same as a division problem, and you can see that x-4 is being divide by 7

The opposite of dividing by 7 is multiplying by 7

Multiply both sides by 7

x-4 = (8-3x)/5 * 7

x - 4 = 56 - 21x/5

Now multiply both sides by 5

5x - 20 = 56 - 21x

Now solve:

5x - 20 = -21x + 56

26x - 20 = 56

26x = 76

x = 2 12/13

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-Chetan K