mapboy9
mapboy9 mapboy9
  • 14-03-2017
  • Mathematics
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Solve by substitution ANSWER NOW

Solve by substitution ANSWER NOW class=
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texaschic101
texaschic101 texaschic101
  • 14-03-2017
y = -5x + 9
y = 5x + 7

5x + 7 = -5x + 9
5x + 5x = 9 - 7
10x = 2
x = 2/10 reduces to 1/5

y = 5x + 7
y = 5(1/5) + 7
y = 1 + 7
y = 8

solution is (1/5,8)
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