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y=x+4 3x-4y=-19 substitute
show work pls

Sagot :

DivineSolar

Answer:

Point form = (3, 7)

Equation form = x = 3, y = 7

Step-by-step explanation:

First we want to replace the occurrences of y in 3x - 4y = -19 with x + 4

3x - 4 (x+4) = -19

Next we simplify the left side.

3x - 4x - 16 = -19

Subtract 4x from 3x

-x - 16 = -19

Then we want to solve for x in -x - 16 = -19

So lets move all terms that do not contain x to the right side.

-x = -19 + 16

Then add

-x = -3

Then we want to divide each term in -x = -3 by -1

y = 3

y = x + 4

Now we want to replace all occurrences of x with 3 in each equation.

y = (3) + 4

x = 3

Add 3 and 4 and we get 7.

Therefore our solution as an ordered pair is (3, 7).

Equation form = x = 3, y = 7.

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