jonesn7
jonesn7 jonesn7
  • 11-02-2020
  • Mathematics
contestada

Use substitution to solve the system (Trigonometry) BRANLIEST ​

Use substitution to solve the system Trigonometry BRANLIEST class=

Respuesta :

jayrod185
jayrod185 jayrod185
  • 11-02-2020

Answer:

[tex]x = -3 \\y = 4[/tex]

Step-by-step explanation:

isolate y in the second equation:

[tex]y= 10 +2x[/tex]

substitute the 2nd equation in the first equation:

[tex]3x - 2(10 + 2x) = -17[/tex]

simplify:

[tex]3x - 20 - 4x = -17[/tex]

add like terms together:

[tex]-x = 3[/tex]

[tex]x = -3[/tex]

After you find x, find y:

[tex]-2(-3) +y=10[/tex]

[tex]6 + y = 10[/tex]

[tex]y = 4[/tex]

Verify:

[tex]3(-3) - 2(4) = -17[/tex] ✓

[tex]-2(-3) + (4) = 10[/tex] ✓

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