Riya wrote the expression for her shopping: she bought 3x pens, then 5x more pens, and 2y notebooks. If x is the cost of one pen and y the cost of one notebook, the total cost has like terms for the pens. What is the total coefficient of x (the combined pen term)?

Question

Accepted Answer

8. Pen terms are like terms: 3x + 5x = 8x. The notebook term 2y is unlike and stays separate. Combined coefficient of x is 8.

Riya wrote the expression for her shopping: she bought $3 x$ pens, then $5 x$ more pens, and $2 y$ notebooks.
If $x$ is the cost of one pen and $y$ the cost of one notebook, the total cost has like terms for the pens.
What is the total coefficient of $x$ (the combined pen term)?

Step-by-Step Solution

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More Class 7 Like and Unlike Terms practice

Riya wrote the expression for her shopping: she bought 3x pens, then 5x more pens, and 2y notebooks.If x is the cost of one pen and y the cost of one notebook, the total cost has like terms for the pens.What is the total coefficient of x (the combined pen term)?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Like and Unlike Terms practice

Riya wrote the expression for her shopping: she bought $3 x$ pens, then $5 x$ more pens, and $2 y$ notebooks.
If $x$ is the cost of one pen and $y$ the cost of one notebook, the total cost has like terms for the pens.
What is the total coefficient of $x$ (the combined pen term)?