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Adding two equations is an easy step. First choose a variable you want to eliminate. Multiply each one by the number that would get you the opposite or additive inverse so it will be gone from the modified equation.
x+y=5 =>3x+3x=15
2x-3x=-5 =>2x-3x =-5
5x =10
x = 2
Substitute that number into one of the equations and solve for the other.
2+y=5
y=3
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How do you know if you will subtract or add in simplifying algebraic expressions?
Only like terms can be subtracted or added in algebraic expressions.
How do you add similar rational algebraic expressions?
Lcd/lcm
After you add or subtract two rational expressions it's a good idea to see if you can your answer?
reduce
How do you evaluate expressions with fractions?
Add, subtranct, multiply, divide, do whatever the expression calls for.
How do you find two number next to each other which add and multiply?
Any two integers next to each other can add and multiply.There are no two numbersnext to each other because numbers are infinitely dense. that is, between any two numbers there is another, and another, and so on. So there is no "next".Any two integers next to each other can add and multiply.There are no two numbersnext to each other because numbers are infinitely dense. that is, between any two numbers there is another, and another, and so on. So there is no "next".Any two integers next to each other can add and multiply.There are no two numbersnext to each other because numbers are infinitely dense. that is, between any two numbers there is another, and another, and so on. So there is no "next".Any two integers next to each other can add and multiply.There are no two numbersnext to each other because numbers are infinitely dense. that is, between any two numbers there is another, and another, and so on. So there is no "next".
