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Kaylis [27]
3 years ago
11

2x-3y=4 -4x+6y=-8. solve by elimination

Mathematics
2 answers:
lianna [129]3 years ago
5 0
  2x - 3y = 4   ⇒ -4x + 6y = -8
-4x + 6y = -8 ⇒ <u>-4x + 6y = -8</u>
                                   <u> 0y </u>=<u> 0</u>
                                    0      0
                                      y = 0
                           2x - 3(0) = 4
                               2x - 0 = 4
                              <u>      +0   +0</u>
                                    <u> 2x</u> = <u>4</u>
                                     2      2
                                      x = 2
                                (x, y) = (2, 0)
oksano4ka [1.4K]3 years ago
4 0
2x-3y=4 \\&#10;-4x+6y=-8 \ \ \ |\div 2 \\ \\&#10;2x-3y=4 \\&#10;\underline{-2x+3y=-4} \\&#10;2x-2x-3y+3y=4-4 \\&#10;0=0 \\ \\&#10;\boxed{\hbox{infinitely many solutions}}
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