Question

Please help!! I'll give 50 points

Answer 1

Answer: y=0 and x=3

Step 1: Solve for x in 2x+9y=6.

$2x+9y=6$

$2x=6-9y$ (Subtract 9y from both sides)

$x=3 - 4.5y$( Divide both sides by 2)

Step 2: Replace x with 3-4.5y

$-7x - 8y = -21\\-7(3-4.5y) - 8y = -21$

Step 3: Solve for y

$(-21)+31.5y-8y=(-21)$ (By looking at this, we can determine that y=0)

Step 4: Replace y with 0

$2x+9y=6\\2x+9(0)=6\\2x=6$

$x=3$ (Divide both sides 2)

Therefore, y=0 and x=3

   

Answer 2

Answer: y=0 and x=3

Step-by-step explanation: