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For that one, there's no way to get an equivalent term by changing just one of them (without involving fractions), so you need to change both.
3x + 2y = 16
What is the first step for the following simultaneous equation:
Do we always use the method of multiplying one of the equations so that two of the variables match in value? Unless the coeffiecient of one of the variables is 1?
You're taking away the -10, but as it's already negative then it's equivalent to you adding 10.
Ah thankyou, I did not know of this method of making a pair of variables match.
The simplest way to get one of the equations to have an equal term to the other is to double the second one.
I know the basics of solving these, but I can't seem to get the following one right: