Consider the system of equations.
x - 4y = 11,
3x + 5y = -1
Which number should you multiply the first equation by to eliminate the x-variable term? A=1 B=-1 C=3 D=-3

In order to eliminate the x-variable in the first equation, multiply it by -3.

Simultaneous equations are sets of equations that have to be solved in tandem in order to determine the required values. The two given equations have to be solved together in order to determine the values of x.

In order to eliminate the  x-variable in equation 1, the value of x in equation 1 and 2 have to be the same. Thus, we would multiply equation 1 by -3.

To learn more about simultaneous equations, please check:

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

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