Respuesta :

Step-by-step explanation:

[tex]4x - 4x + 4y - 5y = 26 - 30[/tex]

[tex]4y - 5y = 26 - 30[/tex]

[tex] - y = 26 - 30[/tex]

[tex] - y = - 4[/tex]

[tex]y = 4[/tex]

[tex]4x + 5x \times 4 = 30[/tex]

[tex]4x = 10[/tex]

[tex]x = \frac{5}{2} [/tex]

[tex]y = 4[/tex]

Hope this is correct and helpful

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From the first equation

4x +4y=26

Divide through by 4

x + y=6•5

Make x the subject

x=6•5 -y

Put x=6•5 into the second equation

4(6•5-y) + 5y= 30

26 - 4y + 5y= 30

y =30 - 26

y=4

Put y = 4 in the second equation

4x + 4y = 26

4x + 4(4) = 26

4x + 16 = 26

4x = 26 - 16

4x = 2•5