Combining algebraic relationships

Maths

Solving linear simultaneous equations algebraically

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?

Fill in the gaps: The "n" in the nth term represents the ____.

Which sequence is formed as a result of adding -3n + 11 and 2n + 1 together?

Which sequence is formed as a result of subtracting 2n + 11 from -3n + 11?

Which sequence is formed as a result of adding "4, 9, 14, 19, ..." and "12, 8, 4, 0, ..." together?

Which sequence is formed as a result of subtracting "4, 9, 14, 19, ..." from "12, 8, 4, 0, ..."?

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