sallyyyy78ee sallyyyy78ee
  • 10-05-2020
  • Mathematics
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PLZ PLZ HELP ME MY TEACHER IS THE MOST HARDEST MARKER PLS ALL WORK SHOWN

PLZ PLZ HELP ME MY TEACHER IS THE MOST HARDEST MARKER PLS ALL WORK SHOWN class=

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 10-05-2020

Answer:

(1,3)

y= 3

x= 1

Step-by-step explanation:

7x+y=10

3x-2y= -3

solve the equation

y=10-7x

3x-2y= -3

substitute the value of y into an equation

3x-2(10-7x)= -3

distribute

3x-20-14x= -3

add 14x from both sides

17x-20= -3

add 20 from both sides

17x=17

divide both sides by 17

x=1

substitute the value of x into an equation

y=10-7•1

multiply 7 to 1

y=10-7

subtract

y=3

(1,3)

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