How can the subtraction property of equality be used to solve addition equations?

The substitution Property of equality is the idea that if x=y, you can then plug x in for y in any equation that y is in. This is helpful if you have two equations where you need to solve for two different variables because you can find that x=y, and then when you plug it into an equation for y, you end up with some form of x=x, which can be easily solved by using addition, subtraction, multiplication and division to get both x to the same side of the equation, and then getting everything else to the other side.

substitution Property of equality is the idea that if x=y, you can then plug x in for y in any equation that y is in. This is helpful if you have two equations where you need to solve for two different variables because you can find that x=y, and then when you plug it into an equation for y, you end up with some form of x=x, which can be easily solved by using addition, subtraction, multiplication and division to get both x to the same side of the equation, and then getting everything else to the other side.

Step-by-step explanation:

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