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
Only like terms can be subtracted or added in algebraic expressions.
Lcd/lcm
reduce
Add, subtranct, multiply, divide, do whatever the expression calls for.
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".
There are lots of different types of problems in algebra; you have to learn each type separately. For example, how to add similar expressions; how to multiply expressions; how to factor polynomials; how to solve equations; etc.
Only like terms can be subtracted or added in algebraic expressions.
You add the numerators and put over the denominator.
Lcd/lcm
reduce
Add, subtranct, multiply, divide, do whatever the expression calls for.
If the denominator is the same, you just add the numerators - just as with plain numbers.
Yes, there is.
Waves in phase add to each other and become stronger.
When two angles add up to 180 degrees, they are supplementary to each other.
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".
You add one side of each of the equations to form one side of the new equation. You add the other sides of the equations to form the other side. Subtraction is done similarly.