-5(x-6)=15
Distributive property

Step-by-step explanation:

1. Multiply -5 by x, and then multiple -5 by -6 using the distributive property.

To get: -5x + 30 = 15

2. Subtract 30 on both sides.

-5x = -15

3. Divide by -5 on both sides to get x = 3

-3

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walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

345

step-by-step explanation: