justarandomgirll justarandomgirll

08-12-2020
Mathematics

contestada

4x + 3y = 6
3x + 5y = -1
Solve the simultaneous equations.

y=
z=

4x 3y 6 3x 5y 1 Solve the simultaneous equations y z class=

Respuesta :

08-12-2020

Answer:

x=3, y= -2

Step-by-step explanation:

Multiplying :

(4x+3y =6)*-3

(3x+5y =-1)*4

-12x -9y= -18

12x+20y= -4

Add the equations

20y-9y = -4-18

11y = -22

y= -22/11 = -2

3x +5* -2= -1

3x -10 = -1

3x = 10-1

x= 9/3 =3

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