Answer:
−4+2+10
Step-by-step explanation:
First we add the numbers with no variable or exponent:
−2++<u>3</u>−5+<u>7</u>+4
−2++<u>10</u>−5+4
Then we combine the like terms. When combining like terms, you must find the numbers with the same variable/letter and add them. A number with the variable cannot be added with the variable . They must be the same variable. Now let's combine the like terms in this problem.
−2<u>+</u>+10<u>−5</u>+4
^ As you can see, the variable does not have a coefficient, so we just use the number 1 as a coefficient. If a variable doesn't have a coefficient, always use 1.
−2<u>−4</u>+10+4
Now we combine the other like terms.
<u>−2</u>−4+10<u>+4</u>
<u>2</u>−4+10
And last, we rearrange the numbers.
To rearrange the numbers, you have to start with the numbers with variables. You must start with the variable that comes first in the alphabet. Then we add the number with no coefficient, just a number by itself. If there's ever an exponent, add the coefficient with an exponent first in the answer.
−4+2+10
Hope this helps! ;)
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