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OpenStudy (dallaslifebaby01):
In which line is a mistake first made when solving the following system of equations by substitution? 3x + y = 9 -2x + y = 4 Line 1 y = -3x + 9 -2x + y = 4 Line 2 3x + (-3x + 9) = 9 Line 3 3x - 3x + 9 = 9 Line 4 9 = 9
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OpenStudy (dallaslifebaby01):
@Vijeya3
OpenStudy (vijeya3):
That would be line 2 :)
OpenStudy (dallaslifebaby01):
thank you!
OpenStudy (vijeya3):
np^-^
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