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FrozenT [24]
4 years ago
5

Use substitution to solve each system of equations Y=2x-2 Y=x+2

Mathematics
1 answer:
Alik [6]4 years ago
8 0
Y = 2x - 2 ⇒ 2x - y = 2  ⇒ 2x - y = 2
y = x + 2  ⇒ x - y = -2   ⇒ <u>2x - 2y = -4</u>
                                                 <u>3y</u> = <u>6</u> 
                                                  3     3
                                                   y = 2
                                            2x - 6 = 2
                                            <u>      +6   +6</u>
                                                 <u>2x</u> = <u>8</u>
                                                  2     2
                                                   x = 4
                                             (x, y) = (4, 2)

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