What is the question ? Do you have a picture of the model?
<h2><u>EQUATION</u></h2><h3>Exercise: -30 = 5(x + 1)</h3>
First, apply the distributive property:
-30 = 5(x + 1)
-30 = 5x + 5
Substract 5 from both sides:
-30 - 5 = 5x + 5 - 5
-35 = 5x
Divide both sides by 5:
Let's check the answer:
-30 = 5(x + 1)
-30 = 5(-7 + 1)
-30 = 5(-6)
-30 = -30
The answer is correct.
<h3><u>Answer</u>. The value of x = -7.</h3>
The boy would have 3 brothers and 3 sisters therefore in the family there would be 4 boys and 3 girls
Answer is 12/15 x 5/9 = 4/9
Step by step: first cross cancel to make your numbers to multiply smaller.
I divided 12 and 9 by 3 and 5 and 15 by 5, see attachment.
Then I multiplied across
Answer is 4/9
6/12 or 4/8 is a possible answer