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23.12.2020 •
Mathematics
Find the exact value of each trigonometric function tan -630
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Ответ:
x = -4 y = -1
Step-by-step explanation:
Solve for each variable by creating an equation and plugging it in to the other given equation.
- Equation to solve for x: x = -4y - 8
- Plug this equation into the other, solving for y so you have:
6(-4y-8)- 2y = -22 => -24y - 48 - 2y = -22 => -26y = 26 => y = -1
- Take this value and plug into the equation we created for x:
x = -4(-1) - 8 => x = 4 -8 => x = -4
- Check your work with given equation 6x -2y = 22:
6(-4) - 2(-1) = -22 => -24 +2 = -22 => -22 = -22