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14-01-2021
Mathematics

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Solve systems by substitution Find the solution
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y = -2
2x + 2y = 4

( , )

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chipdien123 chipdien123

14-01-2021

2x + 2(-2) = 4
2x + -4 = 4
2x = 8
x = 4
(4,-2)

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