Hi!
So we have to make a system of equations here.
Let sibling 1 be O and sibling 2 be Y (for older and younger)
So:
O + Y = 64
O = 64 - Y
(Either one works)
The older sibling is 6 years older.
O = Y + 6
Make everything in terms of Y.
64 - Y = Y + 6
Same to both:
58 = 2y
2y = 58
Divide by 2 on both sides:
y = 29
Since the older sibling is 6 years older:
29 + 6 = 35
Y = 29
O = 35
Let me know if you have any questions.
Answer:
1st is correct
Step-by-step explanation:
Like charges repel each other.
<em><u>HOPE </u></em><em><u>THIS </u></em><em><u>HELP </u></em><em><u>YOU </u></em><em><u>,</u></em><em><u>FOR </u></em><em><u>ANY </u></em><em><u>QUESTION </u></em><em><u>PLEASE </u></em><em><u>ASK </u></em><em><u>ME </u></em>
40\8
5\1
=5
or
0.2
I hope this help
A) He wanted to create zero pairs on the left side of the equation to get a positive coefficient of x on the right side
