System of Three EquationsPro Problems > Math > Algebra > Equations > Systems of Equations
System of Three Equations
Find the ordered triple (x, y, z) if x + y + z = 16; x - z = 10; and y + z = 9
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The following is a system of equations in x and y, with a constant K.
x + 2y = K
x - y = 2
If K is an integer between 20 and 25 inclusive, find all K such that the system has integer solutions.
3x + 4y = 16
2x - 2y = 6
xm + yn = 28
ym + xn = 22
Find the ordered pair (m, n).
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Find all ordered pairs (x,y) such that:
The sum of three numbers is 78. If the first two numbers are doubled, the new sum is 128. Calculate the difference between the sum of the first two numbers and the third number