Q: What to do when the coefficients of either variable are different?

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The coefficients can be any numerical constants.

well, if you want to add apples to bananas you can't do that it's the same with variables, the coefficients can be different but to add and subtract the variables have to be the same for ex: you can't do 4x+3y because they have different variables you can do 4x+3x because they have the same variables all you do is add the coefficients and keep the variable so you would get 7x

Any variable divided by coefficients can equal 7 - provided the variable can take the appropriate value.

The number (constant) in front of a variable (x, y, a, b, etc.)

Just multiply the coefficients, leave the variable the same, and add the exponents.

Related questions

The coefficients can be any numerical constants.

well, if you want to add apples to bananas you can't do that it's the same with variables, the coefficients can be different but to add and subtract the variables have to be the same for ex: you can't do 4x+3y because they have different variables you can do 4x+3x because they have the same variables all you do is add the coefficients and keep the variable so you would get 7x

Any variable divided by coefficients can equal 7 - provided the variable can take the appropriate value.

6.6/0.2

An algebraic number is one that is a root to a non-zero polynomial, in one variable, whose coefficients are rational numbers.Equivalently, if the polynomial is multiplied by the LCM of the coefficients, the coefficients of the polynomial will all be integers.

the coefficient of the expression is 1 the coeffficient of the variable is 5

The number (constant) in front of a variable (x, y, a, b, etc.)

You need to combine the different parts that contain the variable "a". Just add the coefficients together algebraically.

Coefficients are the numbers directly in front of a variable. Variables are letters in place of numbers in a mathematical problem . For example the expression, "2x" has a variable and a coefficient. The variable is the letter x, and the coefficient is the number 2. The coefficient is NEVER a letter, and is always a number. Coefficients and variables can be used in both scientific and algebraic expressions.

What is changed, either by you or the different results. The mother-category of the IV and DV. (independent VARIABLE, and dependent VARIABLE) :)

the unknowns must be the same variable and the exponents have to be the same. examples) x4 + y4 cannot be added because they are not the same variable. x3 + x2 cannot be added because they have different exponents. 3y6 + 5y6 can be added because they have the same variable and exponents. (answer: 8y6)

Different materials have different coefficients of friction because the materials have different microscopic bumps and valleys which cause the friction to begin with. Coefficients of friction are constant for each material.