Answer:
5
Step-by-step explanation:
3x+2-3x+7+5x
3x-3x+5x+2+7
5x+9
Coefficient is the 5 of the 5x.
Sarah bought 3 bracelets and 2 pairs of sunglasses.
Step-by-step explanation:
Total items bought = 5 items
Total spent = $24
Cost of one bracelet = $5
Cost of pair of sunglasses = $4.50
Let,
x be the number of bracelet bought.
y be the number of sunglasses bought.
According to given statement;
x+y=5 Eqn 1
5x+4.50y=24 Eqn 2
Multiplying Eqn 1 by 5
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 0.50
Putting in Eqn 1
Sarah bought 3 bracelets and 2 pairs of sunglasses.
Keywords: linear equations, subtraction
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Answer:
4
Step-by-step explanation:
Using PEMDAS, we solve the brackets first.
Then, we solve the exponents.
Finally, we divide.