Ineed simplify by collecting like terms: -5 + 3x - 7y + 12 - 8x + 14y 1. 21y - 5x + 7 2.-21y - 11x - 17 3. 7y - 5x + 7 7y + 7

7x + 1y - 5 - 11x + 35 + 2y - 7 - 4x + 3y - 37 - 5x - 2y + 14 - 4x + 4y - 21 - 4x + 3y + 23 + 4x + 3y + 22

-5, 35, -7, -37, 14, -21, 23 and 22 are like terms. When added together they equal 23.

7x, -11x -4x, -5x -4x, -4x and 4x are like terms. When added together they equal -17x

1y, 2y, 3y, -2y, 4y, 3y and 3y are like terms. When added together they equal  14y.

The end result is 23 - 17x + 14y

Hope this helps

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37