Evaluate 3x - 4y + 11 for x = -2 and y = -1

9

Step-by-step explanation:

Plug in -2 for x, and -1 for y, and solve:

3x - 4y + 11

3(-2) - 4(-1) + 11

Remember to follow PEMDAS. First, multiply. Remember, that when you multiply:

2 positive signs will result in a positive answer.

1 positive & 1 negative will result in a negative answer.

2 negative will result in a positive answer.

3 * -2 = -6

-4 * -1 = 4

-6 + 4 + 11 = 9

9 is your answer.

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Step-by-step explanation:

3x - 4y + 11

When x = -2 and y = -1

Then,

3(-2) -4(-1) + 11

-6 + 4 + 11

- 2 + 11

9

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

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