SynnoveJ702737 SynnoveJ702737

25-10-2022
Mathematics

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y + 7x= 11; x= -1,0, 4

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FrannyW270032 FrannyW270032

25-10-2022

We have an expression with 2 unknowns, and we have values for one unknown. We have to calculate then the other unknown value:

Expression:

[tex]\begin{gathered} y+7x=11 \\ y=11-7x \end{gathered}[/tex]

Then, when x=-1

[tex]y=11-7x=11-7(-1)=11+7=18[/tex]

When x=0

[tex]y=11-7(0)=11[/tex]

When x=4

[tex]y=11-7(4)=11-28=-17[/tex]

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