Answered

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-3x+3y=12
4x+2y=20

Please help its elimination. It's really hard I can't solve it

Sagot :

Panoyin
-3x + 3y = 12 ⇒ -12x + 4y = 48
 4x + 2y = 20 ⇒   12x + 6y = 60
                                   -2y = -12
                                    -2      -2
                                      y = 6
                          4x + 2(6) = 20
                            4x + 12 = 20
                                   -12  -12
                                     4x = 8
                                      4     4
                                       x = 2
                                 (x, y) = (2, 6)
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