7-4x=3y, 2x+3y=-1 solve by substitution method...pls its urgent
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Answer:
» 7 - 4x = 3y ... (1)
» 2x + 3y = -1 ... (2)
Substitute (1) in (2)
» 2x + 7 - 4x = -1
» -2x = -8
» x = 4
Substitute in (1), we get
» y = -3
Therefore, x = 4 and y = -3
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