Solve these simultaneous equations; 2y + x = 8, 4 + 4y = 8x
equation 1: 2y + x = 8equation 2: 4 + 4y = 8xSolve by substitution;simplify equation 12y + x = 8 x = 8 - 2ysubstitute into equation 2 4 + 4y = 8(8 - 2y)4 + 4y = 64 - 16y 4 + 20y = 64 20y = 60 y = 3substitute y = 3 into x = 8 - 2y; x = 8 - 2(3) x = 8 - 6 x = 2
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