Explain how you know whether to add or subtract when you use the distributive property to multiply

Distributive property of multiplication has two expressions:

1.

2.

If you use these formulas from the left side to the right side, you should see for the sign in the brackets: "+" - use addition, "-" - use subtraction. If you use these formulas from the right side to the left side, you should also take into account sign between and : for "+" - use addition in brackets and for "-" - use subtraction in brackets.

The correct answer is:

We treat the addition or subtraction signs inside the parentheses as positive and negative signs and follow our integer rules.

Explanation:

Take for example -3(x+y). The distributive property tells us to take -3*x + -3*y; we have a positive multiplied by a negative, which is a negative, and another positive multiplied by a negative, which is again a negative. This gives us -3x+-3y, or -3x-3y.

If we consider the sign of the value outside the parentheses as well as the signs of those inside, we can be sure to use the write operation sign.

answer: 1 2 3 6

step-by-step explanation:

1x6=6 2x3=6

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: