WebJun 25, 2024 · 7x-2y/xy=5 ; 8x+7y/xy=15 Solve the simultaneous equation See answers Advertisement Advertisement abhi178 abhi178 (7x - 2y)/xy = 5 and (8x + 7y)/xy = 15 (7x - 2y)/xy = 5 ... and 7 with equation (1) and then add. 7(7/y - 2/x) + 2(8/y + 7/y) = 7 × 5 + 2 × 15 => 49/y -14/x + 16/y + 14/y = 35 + 30 => 65/y = 65 => y = 65/65 = 1 WebIn algebra, a quadratic equation (from Latin quadratus 'square') is any equation that can be rearranged in standard form as where x represents an unknown value, and a, b, and c …
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WebApr 4, 2024 · Solve the equation 10r – 2 = 28 for r. A. -1 B. 1 C. 3 D. 5. WINDOWPANE is the live-streaming app for sharing your life as it happens, without filters, editing, or anything fake. WebTo solve your equation using the Equation Solver, type in your equation like x+4=5. The solver will then show you the steps to help you learn how to solve it on your own. Solving … WebFeb 13, 2024 · Answer. Exercise 5.3.9. Solve the system by elimination. {3x + 2y = 2 6x + 5y = 8. Answer. Now we’ll do an example where we need to multiply both equations by constants in order to make the coefficients of one variable opposites. Exercise 5.3.10. Solve the system by elimination. {4x − 3y = 9 7x + 2y = − 6. Answer. dhhs rockland maine number