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15-02-2015
Mathematics

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solve for y=4x-300 and y=3x+600

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15-02-2015

subsitute 4x-300 for y
4x-300=3x+600
subtract 3x form both isdes
x-300=600
add 300 to both sides
x=900
subsitute 900 for x
y=4(900)-300
y=3600-300
y=3300

x=900
y=3300

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