The substitution property of equality allows you to say that if 7j + 14k = 28, and j = 2, then 7(j + 2k) = 28 k = 2 7 ● 2 + 14k = 28 28 = 14k + 7j

The Substitution Property of Equality allows you to say that if 7j + 14k = 28, and j = 2, then  k = 1 .

Step-by-step explanation:

As the expression is given in the question be as follow .

7j + 14k = 28

As given the value of j = 2 .

Put the value of j in the equation 7j + 14k = 28 .

7 × 2 + 14k = 28

14 + 14k = 28

14k = 28 - 14

14k = 14

k = 1

Therefore the Substitution Property of Equality allows you to say that if 7j + 14k = 28, and j = 2, then  k = 1 .

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form