5x + 2y = 8, x + y = 4 If you want to solve the system of equations by addition, Multiply the second equation by -2 and add. (x + y = 4) x (-2) = (-2x - 2y = -8) + (5x + 2y = 8) = 3x = 0; x = 0/3; x = 0; Plug x = 0: 5(0) + 2y = 8; 2y = 8; y = 8/2; y = 4

Added 9/22/2014 2:28:52 PM

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Weegy:
x + (x + 1) = 73;
2x + 1 = 73;
2x = 73 - 1;
2x = 72;
x = 72/2;
x = 36, the next integer is 37.
36 + 37 = 73. The equation 2x + 1 = 73 could be used to solve the problem.
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