Respuesta :
The value of x is 0.1 and y is -0.75, if the given equations are [tex]10x+4y=-2[/tex] and [tex]5x-2y=2[/tex].
   Â
Step-by-step explanation:
The given is,
               [tex]10x+4y=-2[/tex] .................................(1)
                 [tex]5x-2y=2[/tex]..................................(2)
Step:1
     Equation (2) is multiplied by -2           ( Eqn(2) × -2 )
                [tex]-10x+4y=-4[/tex]................................(3)
Step:2
     Substrate the equation (1)  and (3),
                 [tex]10x+4y=-2[/tex] Â
                [tex]-10x+4y=-4[/tex]
      ( - )
      [tex](10x+10x)+(4y-4y)=(-2+4)[/tex]
                      [tex]20x=2[/tex]
                        [tex]x=\frac{2}{20}[/tex]
                         = 0.1
                        x = 0.1
Step:3
      Substitute the value of x in equation (1),
                 [tex]10x+4y=-2[/tex]
     Where, x = 0.1
              [tex](10)(0.1)+4y=-2[/tex]
                    [tex]1+4y=-2[/tex]
                       [tex]4y=-3[/tex]
                        [tex]y = - \frac{4}{3}[/tex]
                        [tex]y =- 0.75[/tex]
Step:4
    Check for solution,
                   [tex]5x-2y=2[/tex]
         [tex](5)(0.1)-(2)(-0.75)=2[/tex]
                  [tex]0.5+1.5=2[/tex]
                        2 = 2
Result:
      The value of x is 0.1 and y is -0.75, if the given equations are [tex]10x+4y=-2[/tex] and [tex]5x-2y=2[/tex].
Answer:
A
Step-by-step explanation:
Thanks you plz mark brainliest bc the guy that was before me got it wrong , thx!