Exploring expressions with two variables

Maths

Solving linear simultaneous equations algebraically

If a protractor costs 50p and a ruler costs 60p, what is the cost of 3 protractors and 2 rulers?

I want to buy 3 rulers and 3 protractors. If they cost 40 pence each, how much will I spend?

Given that y=13, which of the following expressions is equal to 195?

If x=4 and y=5, which of the following expressions is equal to 24?

Look at the picture below and then fill in the gap: If the same expression is __________ to two equal quantities, then the two resulting expressions will be equal.

Look at the picture below and then fill in the gap: If the same expression is ___________ from two equal quantities, then the two resulting expressions will be equal.

Look at the picture below and then fill in the gap: If two equal expressions are both _____________ by the same quantity, then the two resulting expressions will be equal.

Look at the picture below and then fill in the gap: If two equal expressions are both __________ by the same quantity, then the two resulting expressions will be equal.

If 𝑥 + 𝑦 = 100, then what is the value of 2𝑥 + 2𝑦 - 20?

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