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Explain how to simplify this expression: 4a + 19 - 3a - 7

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Answer:

a + 12

Step-by-step explanation:

You need to combine all like terms. Like terms have the same variable and exponent. If they don't have that, you can not combine them.

4a & -3a can be combined. 4a-3a = a

19 & -7 can be combined. 19-7 = 12

You can not combine anything else, so your answer is a + 12.

The simplified expression of the expression 4a+19-3a-7 is a+12.

Given an expression 4a+19-3a-7.

We have to simplify the given expression.

Expression is combination of numbers, symbols, fraction, determinants, indeterminants. It is usually not found in equal to form. It shows some relationship or equation of lines, etc. It contain arithmetic operations also. Expression shows some linear equation also. In simplifying we have to use addition,subtraction,multiplication and division.

The given expression=4a+19-3a-7

We have to subtract 3a from 4a.

=a+19-7

Now we have to subtract 7 from 19.

=a+12      (In this expression a is the variable)

Hence the simplified expression of the expression 4a+19-3a-7 is a+12.

Learn more about expression at https://brainly.com/question/723406

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