Solve the following system of equations by using the substitution method.
1 answer:
X = y + 3 2x + y = 9 Solution.. --------------- Substitute for x=y+3 in the second equation... 2x+y = 9 2(y+3)+y=9 2y+6+y=9 3y+6=9 3y=9-6 3y=3 y=3/3 y=1.... Substitute for y=1 in the first equation... x=y+3 x = 1+3 x=4.. Am sure the answer is quite evident now...
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