Question

Which expression is equivalent to -2(9y-3)

a) -18y + 6 c) -18y -3
b) -18y - 6 d) 18y + 6

Answer 1

a. -18y+6

using distributive property u can find that -2 times 9y is -18y. -2 times 3 is -6. -18y - (-6) or -18y+6

Answer 2

A) - 18y + 6

Explanation:

Distribute -2 to all terms within the parenthesis.

Note that:

When you multiply/divide:

Two positive terms, the result will be positive.

One negative and one positive term, the result will be negative.

Two negative terms, the result will be negative.

First, multiply -2 with 9y:

-2 * 9y = -18y

Next, multiply -2 with -3:

-2 * -3 = 6

-18y + 6, or A) is your answer.

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