In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

₹0.0

📥 Instant PDF Download
♾ Lifetime Access
🛡 Secure & Original Content

What’s inside this PDF?

Question: In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

Options:

Correct Answer: 4

Exam Year: 2021

Solution:

Substituting x = 2 into the equation gives 5(2) + 3y = 20. This simplifies to 10 + 3y = 20, leading to 3y = 10, thus y = 10/3, which is approximately 3.33. The closest integer option is 4.

In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

Practice Questions

In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

Questions & Step-by-Step Solutions

In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

Step 1: Start with the equation 5x + 3y = 20.
Step 2: Substitute the value of x (which is 2) into the equation.
Step 3: Replace x in the equation: 5(2) + 3y = 20.
Step 4: Calculate 5 times 2, which is 10. Now the equation is 10 + 3y = 20.
Step 5: To isolate 3y, subtract 10 from both sides of the equation: 3y = 20 - 10.
Step 6: Simplify the right side: 3y = 10.
Step 7: To find y, divide both sides by 3: y = 10 / 3.
Step 8: Calculate 10 divided by 3, which is approximately 3.33.
Step 9: The closest integer to 3.33 is 4.

Algebraic Substitution – The process of replacing a variable in an equation with a given value to solve for another variable.
Linear Equations – Understanding and manipulating linear equations to find unknown variables.

In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

What’s inside this PDF?

In the expression 5x + 3y = 20, if x = 2, what is the value of y? (2021)

Practice Questions

Questions & Step-by-Step Solutions

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?