Simultaneous Equations (G9)
Q: Solve the simultaneous equations: x = 3y, 9y - x = 12.
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Expand: 6 - 3y = y - 14. Move y terms: 6 - 4y = -14. Move constants: -4y = -20. Divide: y = 5.
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Q: Solve the simultaneous equations: x = 3y, 9y - x = 12.
Expand: 6 - 3y = y - 14. Move y terms: 6 - 4y = -14. Move constants: -4y = -20. Divide: y = 5.
Share your knowledge: