Simplify the 3 problems below (-2x + 4) + 2(2x + 1)
2(3x + 5) − 4(x − 1)
2(x − 7) + (8x + 20)

sure

Step-by-step explanation:

(-2+4)+2(2x+1)

2x+1 answer for first one

second one is 2x +14

third is 10x+6

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3