Solve the following system of equations.
2 answers:
2x+y-3=0,x-2y=1 okay that's the answer good luck
Subtract y from both sides
now we have
2x = -y + 3
divide both sides by 3
x= -y/2 + 3/2
the other x equals 2y +1, set these equal to eachother
2y + 1 = -y/2 + 3/2
add y/2 to both sides
2.5y + 1 = 3/2
subtract 1 from both sides
2.5y = 0.5
divide both sides by 2.5
y=0.2
plug in 0.2 for y in an original equation
x = 2(0.2) + 1
solve
x = 1.4
ANSWER:
x= 1.4
y= 0.2
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