Answer:
4x + 1.9 = 22.2
22.2 - 4x = 1.9
Step-by-step explanation:
Define the variable:
Given information:
First equation
The cost of 4 tire patches and the amount remaining on the gift card equals the total amount on the gift card:
⇒ 4x + $1.90 = $22.20
⇒ 4x + 1.9 = 22.2
Second equation
The total amount on the gift card less the cost of 4 tire patches equals the amount remaining:
⇒ $22.20 - 4x = $1.90
⇒ 22.2 - 4x = 1.9