Question

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Answer 1

Answer:

9.$\:\:x = 3. 5$

10. y = 8x + 12

Step-by-step explanation:

9.

12x = 4(x + 2) + 20

12x = 4x + 8 + 20

12x - 4x = 28

8x = 28

x = 28/8

x = 7/2

$x = 3.5$

10.

Slope (m) = 8

Line is crossing y-axis at (0, 12)

y-intercept (b) = 12

Equation of line in slope-intercept form is given as:

y = mx + b

Plugging the values of m and b in the above equation, we find:

y = 8x + 12

Answer 2

Answer:

x=3.5

Step-by-step explanation:

12x=4(x+2)+20

multiply the parentheses by 4

12x = 4x+8 +20

add 20 to 8

12x = 4x +28

subtract 4x on both sides

8x = 28

divide both sides by 8

x=3.5