Given the expression 36y + 9
If y = 16, then
36*16 + 9 = 576 + 9 = 585
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y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
If you mean: x = 16 and y = 14 then x+y = 30
x = y+3 x+2y = 9 => x = 9-2y y+3 = 9-2y 2y+y = 9-3 3y = 6 y = 2 and x = 5
11x+2y+9 is the final answer.
x + y = -1 (a) 4x - 3y = 12 (b) 3(a)+(b) gives 3x + 3y + 4x - 3y = -3 + 12 or 7x = 9 or x = 9/7 then x + y = -1 gives y = -1 -x = -1 - 9/7 = -16/7 So, x = 9/7 and y = -16/7