exam Maths Puzzle Numerical Ability

Solve the system of linear equations by the substitution method. Then, state whether the system is independent, dependent, or inconsistent.
-x+7y=4
-x+7y=3

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exam Other Question

(9x^3-18x^2-x+2)/(3x+1) find an equation of the line containing (-1,6) and (0,-3) and write the result in slope intercept form