How do you balance this equation

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Solve x+3y=6 and 4x-6y=6 by elimination . show work !

3x + 4y = 5 x- 3y = -7 solve by substitution

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe