Solve the system of equations -4x+5y=64−4x+5y=64 and -x+y=12−x+y=12 by combining the equations.

Step-by-step explanation:

Given system of equations:

A)

B)

Solving the system by combining the equations.

Rearranging equation B, to solve for in terms of

Adding both sides by

Combining equations by substituting rearranged equation B into equation A in place of .

Using distribution.

Simplifying.

Subtracting both sides by 60.

∴   (Answer)

We can plugin in the rearranged equation B to get value of

∴   (Answer)

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

whatvare the choices

step-by-step explanation: