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5 cards from this section. Quick, good the night before a test.
Solve using substitution: 𝑥 + 𝑦 = 7, 2𝑥 − 𝑦 = 4.
Rearrange the first equation for y, then substitute.
Using elimination, solve: 3𝑥 + 2𝑦 = 16, 𝑥 + 𝑦 = 5.
Multiply the second equation by 2 to match coefficients.
What is a simultaneous equation?
Think of how these equations interact.
If lines intersect at one point, what type of solution does it represent?
Visualize the graph!
You have a basket of fruits with apples and oranges totaling $30. If each apple costs $3 and each orange costs $2, and the total number of fruits is 15, how many of each fruit do you have?
Formulate a system of equations based on the information given.
A school has a total of 300 students. The number of boys is twice the number of girls. What’s the number of boys and girls?
Set equations based on the relationships defined.
6 more questions in this section. Enroll free to practise them all.
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