Answer:
-6a-12+3a
Step-by-step explanation:
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The expression equivalent to the 3 ( -2a-4) +3a is -6a -12 +3a, the correct option is A.
An expression is a mathematical statement that consists of variables, constants, and mathematical operators.
The expression is
3 ( -2a-4) +3a
This expression consists of one variable a,
The distributive property will be used to open the bracket.
According to the Distributive property, when a number is multiplied by the sum of two numbers, it will give the same result as when the number is multiplied by each addend individually.
3 * (-2a) + (3 * ( -4)) +3a
On solving the brackets
-6a -12 +3a
Grouping the like terms.
The Associative property is used in grouping the like terms together.
According to the associative property, the sum of two or more remains the same even if the sequence of the numbers is interchanged.
-6a +3a -12
+3a -12
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