Solve for x and y using the substitution method.
x + 3y = 6
2x - y = 5
x = 3
y = 1
Mathematics
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Factor by grouping.r2 - 6r + rt - 6t
A. (r - 6)(r - t) B. rt(r - 6) C. (r - 6)(r + t) D. (r + 6)(r - t)
Mathematics
Find the constant of variation, k. y varies directly with x; y = 6 when x = 
A. k = 
B. k = 
C. k = 24
D. k = 
Mathematics
Determine the solution to the system of inequalities.-x + 2y ? -63x + 2y > -18
A. 
B. 
C. 
D. 
Mathematics
Eliminate the parameter.x = 3t, y = t + 7
A. y = 3x + 7 B. y = x/3 + 7 C. y = x/3 - 7 D. y = 3x - 7
Mathematics