DOWOLKOR b. 7 + 2x = 4x - 3 What is the value of x to make both sides even?
2 answers:
Answer:
it's not possible
Step-by-step explanation:
we need to make
even
and
also even
but we can't
in the first one
is even no matter what value of x
so to an even you add and odd you get?
odd
so we cannot make 2x+7 even
nor 4x-3
because
4x=2(2x)
and to an even substract an odd you get?
odd
so you cannot make both sides even
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Answer:
Step-by-step explanation:
To add the two fractions, you need a common denominator. In this case, the lowest common denominator (LCD) is 9y. That's because 9y is divisible by both 3y and 9y.
The first fraction must be changed so that its denominator is 9y. Do this by multiplying both numerator and denominator by 3.
Finally, this answer can be simplified ("reduced") by dividing both numerator and denominator by 3, their greatest common factor.