Solve the system of equations by the substitution method.
A. (-7, 63)
B. no solution
C. (63, -7)
D. infinite number of solutions
Answer: A
Mathematics
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Simplify.
A. 
B. 
C. 
D. 
Mathematics
Translate the sentence into an equation, then solve.A number x increased by 
is equal to 7.
A. x + 
= 7, x = 7
B. x + 7 = 
, x = - 6
C. x + 
= 7, x = 6
D. 
+ x = 7, x = 2
Mathematics
Evaluate the determinant.
A. 1 B. 74 C. 0 D. -20
Mathematics
Provide an appropriate response.Consider the equation 5(-3 - x) + x = 14x - 5(3 - x). Now consider the following system of equations solvable by the substitution method: y = 5(-3 - x) + x y = 14x - 5(3 - x).Explain the connections that exist between the single equation and the system of two equations.
What will be an ideal response?
Mathematics