7(y-1)= 21
show how you answered the question step by step.

Step-by-step explanation:

-7(y-1)= 21

-7y+7=21

-7y=21-7

-7y=14

divide by-7

y=-2

y = - 2

Step-by-step explanation:

Given

- 7(y - 1) = 21 ( divide both sides by the multiplier - 7 )

y - 1 = - 3 ( add 1 to both sides )

y = - 2

step-by-step explanation:

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3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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