Examine the first two steps for solving this equation. 3x - 6(5x + 3) = 9x + 6 1. Distribute: 3x - 30x - 18 = 9x + 6 2. Combine
2 answers:
The Coefficient of variable term x after making it isolated would be -36
Step-by-step explanation:
We have to solve the equation in order to get the coefficient of x at the end after isolation.
Given
Distribute
Combine like terms:
subtracting 9x from both sides
We can clearly see that the coefficient of x at the end after it has been isolated is -36
Hence,
The Coefficient of variable term x after making it isolated would be -36
Keywords: Linear Equation, Variable
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The right answer is Option C: 20
Step-by-step explanation:
Given,
Cost of medium cup of coffee = $3.00
Cost of large cup of coffee = $4.00
Total cups sold = 35
Total revenue for the coffee = $125.00
Let,
Number of medium cups of coffee = x
Number of large cups of coffee = y
According to given statement;
x+y=35 Eqn 1
3.00x+4.00y=125.00 Eqn 2
Multiplying Eqn 1 by 3;
Subtracting Eqn 3 from Eqn 2
As y represents the number of large cups, therefore,
20 large cups of coffee were sold by the shop.
The right answer is Option C: 20
Keywords: linear equation, subtraction
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