Question 289152
a) 


*[invoke linear_equation_solver "7x - 5 - 2x = 9", "x"]


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b) 


*[invoke linear_equation_solver "2x + 4 = 3x - 2", "x"]


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c) 


*[invoke linear_equation_solver "4(x - 3) = 3(x - 4)", "x"]


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