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To solve you must make sure there are the same number of either x's or y's in both equations. We will call '2x-3y=24' equation 1, and '6x+2y=-5' equation 2. If you multiply equation 1 by 3 then you get '6...

Genetic diseases with an X-linked recessive inheritance pattern usually affect only the males in a family. These diseases are inherited via mutations on the X chromosome. Females have two X chromosomes an...

The subjunctive is a mood, rather than a tense. A verb is triggered into the subjunctive when expressing a wish, hope or desire. For example, "I want you to play the piano" becomes "quiero ...

This seems like a very easy grammatical aspect but a lot of people have trouble with it. When speaking both these words sound the same which is why it can be very tricky when writing and using these. The ...

First write down all the factor pairs of 12 (1,12) (-1,-12) (3,4) (-3,-4) (6,2) (-6,-2).

From these factors, find a pair that, when added together, is equal to -7.

In this case the correct p...