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Dmitry_Shevchenko [17]
3 years ago
5

-3x-3y=3 5x+y=-17 What is the answer ?

Mathematics
1 answer:
barxatty [35]3 years ago
5 0
-3x - 3y = 3     ⇒   -3x - 3y = 3
 5x + 1y = -17 ⇒ <u>-15x - 3y = 51</u>
                                    <u>12x</u> = <u>-48</u>
                                     12      12
                                        x = -4
                                5x + y = -17
                             5(-4) + y = -17
                               -20 + y = -17
                             <u>+ 20         + 20</u>
                                         y = 3
                                    (x, y) = (-4, 3)
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