Find the value of x.

Equation?
X?

(12x + 19) + (22x - 9) = 180°, x = 5

Step-by-step explanation:

Supplementary angles are 2 angles that adds up to 180°

Another words,

(12x + 19) + (22x - 9) = 180°

Now we solve for x by combining like terms:

34x + 10 = 180°

Subtract 10 on both sides:

34x = 170°

Divide 34 on both sides:

x = 5

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads