A bag contains yellow Marbles and blue marbles 37 and total the number of yellow marbles is 8 less than 2 times the number of bl ue marbles how many yellow marbles are there
1 answer:
Answer:
22 yellow marbles
Step-by-step explanation:
Let y = yellow marbles
B = blue marbles
y+b = 37
y =2b-8
Substitute this equation into the first equation
2b-8 + b =37
Combine like terms
3b-8 =37
Add 8 to each side
3b-8+8 =37+8
3b = 45
Divide by 3
3b/3 = 45/3
b = 15
We need to know yellow marbles
y =2b-8
y = 2(15) -8
y = 30-8
y =22
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