Answer:
Step-by-step explanation:
22
You can simplify expressions by simplifying parentheses by using the distributive property and combing like terms.
Combining like terms is the process of adding up numbers with the same variable(s) and exponent. If a term does not have an exponent then an exponent of 1 is implied.
There is no parentheses in the expression 3a + 7 - a - 7
But, there are like terms in the expression.
Which are the like terms?
3a and a are both like terms. They both have the same variables and they both have the same exponent.
7 and -7 are like terms, too.
3a + 7 - a - 7
2a
So, 2a is the simplified version.
Answer:
A
Step-by-step explanation:
it says it is currently at 60 watts, if its tripled (times 3) that meansits times 3 and 60 times 3 is 180 so its A therefore.
Answer:
a. ( 5 ) ( 0 ) − 2
= −2
b. ( 5 ) ( 1 ) + 8
= 13
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