Daniel Poon's answer to Lina's Primary 6 Maths Fractions Singapore question.
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This is an example of a question that can be solved using algebra and simultaneous equations. By letting the mass of an empty crate be x and the mass of apples in a full crate be y, you can form simultaneous equations in terms of x and y. By making the two equations have the same value of y, we can subtract equation 3 from equation 4 to get an equation in terms of x only. Solve for x.
Date Posted:
2 years ago
Is there better way of doing the working because my son yet to cover algebra