HELP PLS! Perform an operation on the given system that eliminates the indicated variable. Write the new equivalent system.

2x + y − 4z = 4
2x + 4y + z = 15
6x − 3y − z = 11
Eliminate the x-term from the third equation.

2x + y − 4z = 4
2x + 4y + z = 15
= −34

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Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

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