Answer:
7x² - 6x - 18
Step-by-step explanation:
7x² - 6(x + 3)
multiply with -6
7x² - 6x - (6 × 3)
evaluate
= <u>7x² - 6x - 18</u>
Answer:
14 deliveries per hour
Step-by-step explanation:
42/3
14
The person makes 14 deliveries per hour
X= -7
2+x=-5 if you move the constant to the right side it would be x=-5-2 which equals -7
Answer:
6 = W + 2
Explanation:
The reason is since the hangar balance is "balanced" and there are six units on the left side and only 2 on the right (minus the variable weight), that means that the left weight is equal to the right and therefore 6u=w+2u.
Option 1.
and option 4.
are equivalent to 
Step-by-step explanation:
Step 1:
The given expression is expanded as follows.
The -2 is multiplied with the 5x and then the -2 is multiplied with the
.
So the expression becomes as follows;

This is the first option given so the first expression is equivalent.
Step 2:

Of the other four options, only the fourth expression has the fraction
so the fourth expression is also equivalent.
Expressions 1 and 4 are equivalent to the given expression.