Q: Can you subtract unlike terms

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Unlike terms.

The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.

You can only add or subtract like terms. So, you subtract 9x from 2x, which gives you -7x. Then subtract -9 from 3 to get -6. And you are left with -7x -6.

Decreased means subtract. If your age is decreased by 5, that means take your age and subtract 5.

A trinomial is a polynomial. All trinomials are polynomials but the opposite is not true. a trinomial= three unlike terms. a polynomial= "many" unlike terms.

Related questions

You can add and subtract coefficients when they occur in like terms, which means they have the same variable. 2x + 3x = 5x (This addition can take place because all of the variables are x, and are therefore like terms.) and 5y - 2y = 3y (This subtraction can take place because all of the variables are y, and are therefore like terms.) However, if the variables differ, they are unlike terms, and you cannot add or subtract the coefficients. For example: 2a + 3b cannot be added because a and b are different variables, and therefore unlike terms. 3c - 2d cannot occur because c and d are different variables, and therefore unlike terms..

no, to add and subtract like and unlike fractions the denominator has to be the same,

first find a common denominator then subtract the top numbers

Unlike terms are terms in an equation that are different. These terms cannot be combined. Like terms, however, can be combined.

Unlike terms.

You would have to convert the units to be alike, then you would be able to add and subtract them.

To add and subtract unlike fractions.

what's 8+15=

When you want to add or subtract unlike fractions.

In surd form, square roots need to be have the same radical term before you can add or subtract them. However, unlike in algebraic expressions, it is possible to add or subtract square roots using approximate (decimal) values.

just change the fration with the smallest denominator and add or subtract the way you always do.

You can't. You can only subtract like terms. Like terms must have exactly the same variables and exponents on the variables.