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Solving Simultaneous Equations - h1014v1_153
Simultaneous Equations Summary

Mathematics Volume 1 of 2
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SIMULTANEOUS EQUATIONS Algebra Substitute the value for x into the other equation: 5 (2 - 4y) + 3y   = -1 3 10 - 20y + 3y   = -1 3 10 - 20y + 9y   = -1 3 3 10 - 11y    = -1 3 -11y   = -11 3 y  = 3 Substitute y = 3 into the first equation: 3x + 4(3)    = 6 3x = -6 x  = -2 Check the solution by substituting x = -2 and y = 3 into the original equations. 3x + 4y = 6 5x + 3y    = -1 3(-2) + 4(3)    = 6 5(-2) + 3(3)     = -1 -6 + 12   = 6 -10 + 9    = -1 6  = 6 -1  = -1 Thus, the solution checks. MA-02 Page 40 Rev. 0







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