Which elementary row operation will reduce the x–element in row 2 to 0 in this matrix? [1 1 1 | 12
2 1 0 | 14
2 0 3 | 19]
A. 2R1 + R2 B. 2R3 – R2 C. -2R1 + R2 D. R1 + R2

Me. i need an answer asap. , you! select the correct answer from each drop-down menu.simplify the given polynomial and use it to complete the statement.the polynomial simplifies to an expression that is a blank with a blank degree of blank .

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1