Question

Resuelva el metodo por sustitucion .
2x+3y= 12
64-y = 16​

Answer 1

Explicación paso a paso:

2x+3y=12

3y=12+2x

y=12+2x/3

6x-y=16

-y=16+6x

y=16+6x/-1

y=16-6x

12+2x/3=16-6x

2x/3-6x=16-12

-16/3=4

x=4÷-16/3

x=-3/4

2(-3/4)+3y=12

-3/2+3y=12

3y=12+3/2

y=27/2÷3

y=9/2

6(-3/4)-y=16

-9/2-y=16

-y=16+9/2

y=41/2÷-1

y=-41/2

2(-3/4)+3(9/2)=12

-3/2+27/2=12

12=12

6(-3/4)-(-41/2)=16

-9/2+41/2 = 16

16 = 16

espero te haya ayudado