Mathematics, 01.02.2020 01:44 zacharysharpe2805

Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 .

which property justifies this step?

division property of equality
multiplication property of equality
substitution property of equality
subtraction property of equality

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Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 .

which property jus...

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