Therefore, the answer is 1) y = 2x - 6
Using substitution:In the first equation, look to solve for x
{x + 3 y = 8
{4 x - y = 6
Subtract 3 y from both sides:
{x = 8 - 3 y
{4 x - y = 6
Substitute x = 8 - 3 y into the second equation:
{x = 8 - 3 y
{4 (8 - 3 y) - y = 6
4 (8 - 3 y) - y = (32 - 12 y) - y = 32 - 13 y:
{x = 8 - 3 y
{32 - 13 y = 6
In the second equation, look to solve for y:
{x = 8 - 3 y
{32 - 13 y = 6
Subtract 32 from both sides:
{x = 8 - 3 y
{-13 y = -26
Divide both sides by -13:
{x = 8 - 3 y
{y = 2
Substitute y = 2 into the first equation:
Answer: {x = 2
{y = 2
Answer:
3x² + 2x -16
Step-by-step explanation:
(3x+8)(x-2)
=> 3x(x) + 3x(-2) + 8(x) + 8(-2)
=> 3x² - 6x + 8x - 16
=> 3x² + 2x -16
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Answer:
D. or 5/8, 0.625, 625%
Step-by-step explanation:
i dont feel like explaining it