For the following system, use the second equation to make a substitution for x in the first equation.
3x + 2y = 7

x - y + 3 = 0

What is the resulting equation?

3y - 3 + 2y = 7
3(y - 3) + 2y = 7
3x - y - 3 + 2y = 7

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

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

t hope this

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