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Solve this simultaneous equation: 3x + y = 10, x + y = 4
x = 3
Answered by Hibah M. •
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Amber earns £7 for each hour she works from Monday to Friday. She earns £10 for each hour she works on Saturday. One week Amber worked for 4 hours on Saturday. That week she earned a total of £180. How many hours did Amber work that week?
How do you factorise a quadratic equation
Solve 9x - 3 = 4x + 17
x is an integer such that 1≤x≤9, Prove that 0.(0x)recurring=x/99
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