GCSE Maths Practice: simultaneous-equations

Question 1 of 10

Solve simultaneous equations by substitution.

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\( \begin{array}{l}\text{Solve: } 2 \times x + 3 \times y = 16, x + y = 7\end{array} \)

Choose one option:

Always substitute one variable into the other equation first.

From \(x+y=7\), get \(y=7-x\), then substitute into \(2 \times x + 3 \times y = 16\). Solve for x, then y.