bri0531 bri0531
  • 23-01-2021
  • Mathematics
contestada

what is -2(1-4x)=3x+8

Respuesta :

Dead3ill
Dead3ill Dead3ill
  • 23-01-2021

Answer:

x = 2

Step-by-step explanation:

[tex]-2(1 - 4x) = 3x + 8[/tex]

[tex]=> -2 + 8x = 3x + 8[/tex]

Lets keep the variables in L.H.S .

[tex]=> 8x - 3x = 8 + 2[/tex]

[tex]=> 5x = 10[/tex]

[tex]=> x = \frac{10}{5} = 2[/tex]

Verification :-

Lets put x = 2 in the eqn.

In L.H.S -

[tex]-2 (1 - 4 \times 2)[/tex]

[tex]=> -2 (1 - 8)[/tex]

[tex]=> -2 \times -7[/tex]

[tex]=> 14[/tex]

In R.H.S -

[tex]3 \times 2 + 8[/tex]

[tex]=> 6 + 8[/tex]

[tex]=> 14[/tex]

∴ L.H.S. = R.H.S. (Proved)

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