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21 votes
21 votes
N below if a = -2 and b = 3.a+2b/4 + 4a

User Richard Jordan
by
2.6k points

1 Answer

11 votes
11 votes

The left side of the expression has a denominator of 4 while the right side has a denominator of 1.

To start with, we have to find the LCM (lowest common multiple) for both sides of the expression

The LCM of 4 and 1 is 4.

When dealing with fractions, the first step after finding the LCM is;

Left side:LCM divided by left denominator times left numerator PLUS

Right side:LCM divided by right denominator times right numerator.

Thus we now have the following;

(4/4) * (-2 + 2*3) + (4/1) * 4*(-2)

1 * (-2 + 6) + 4 * (-8)

4 + (-32)

-28

User Wayne Liu
by
3.4k points
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