01-02-2021
Mathematics

contestada

4x+5y=6 and 6x-7y=-20

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Аноним Аноним

01-02-2021

Answer:

Step-by-step explanation:

4x+5y=6

x=[tex]\frac{6-5y}{4}[/tex]

6([tex]\frac{6-5y}{4}[/tex])-7y=-20

9-7.5y-7y=-20

-14.5y=-20

y=[tex]\frac{20}{29}[/tex]

5([tex]\frac{20}{29}[/tex])+4x=6

x=[tex]\frac{37}{58}[/tex]

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