G7-MATH-L4 Simple Equations

What is the first step Ameena asks Sara to do with her number?

• Add 5
• Multiply by 4
• Subtract 5
• Divide by 4

If Sara thinks of the number 15, what is the result of the expression 4x + 5?

• 65
• 60
• 55
• 70

What is the equation formed from Appu's game with Balu's result?

• 10y + 20 = 50
• 10y - 20 = 50
• 10y - 50 = 20
• 10y + 50 = 20

What does the variable 'x' represent in Ameena's example?

• A fixed number
• An unknown number
• A constant
• A fraction

In the equation 4x + 5 = 65, what is the value of x?

• 10
• 15
• 20
• 25

What happens to the equality of an equation if you add different numbers to both sides?

• It remains the same
• It becomes invalid
• It doubles
• It becomes zero

Which of the following is a correct property of equations?

• You can change the LHS and RHS freely
• You can add or subtract the same number from both sides
• You can only add numbers to the LHS
• You can multiply only the RHS

What does transposing a number in an equation involve?

• Changing its value
• Changing its sign
• Adding it to both sides
• Removing it from the equation

If the equation is 4x + 5 = 6x - 25, what is the LHS?

• 4x + 5
• 6x - 25
• 25
• x

What is the solution to the equation 10y - 20 = 50?

• 7
• 5
• 10
• 8