-2x + y=10. what is the answer to this?
y=-1/3x+3

x = - 3, y = 4

Step-by-step explanation:

Given the 2 equations

- 2x + y = 10 → (1)

y = - x + 3 → (2)

Substitute (2) into (1), that is

- 2x - x + 3 = 10 ( multiply through by 3 to clear the fraction )

- 6x - x + 9 = 30

- 7x + 9 = 30 ( subtract 9 from both sides )

- 7x = 21 ( divide both sides by - 7 )

x = - 3

Substitute x = - 3 into (2) for corresponding value of y

y = - (- 3) + 3 = 1 + 3 = 4

solution is x = - 3, y = 4

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

if x decreases by 4 then y increases by 10

step-by-step explanation: