Question

What is the solution of the system of equations -2x + y= -3 -x+2y= 3

A- (3,3)
B- (0, 2)
C- (-3,-9)
D- (-21,-9)

Answer 1

A is true
$- 2x + y = - 3 \\ - x + 2y = 3 \\ = = = = = = = = = \\ 3x = 9 \\ x = 3$
$- 3 + 2y = 3 \\ 2y = 6 \\ y = 3$





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