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Mathematics, 28.01.2020 17:41 tanyiawilliams14991

X−3y=1
x+y=9
which property allows you to write the equation −4y=−8 as the first step to solving the system of equations?
question 3 options:
division property of equality
substitution property of equality
subtraction property of equality
distributive property

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X−3y=1
x+y=9
which property allows you to write the equation −4y=−8 as the first step t...
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