You can buy $135 worth of shirts that cost $25 each.
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations.
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
When you buy more than one shirt, you get $10 off your purchase.
You also have a coupon for 20% off your purchase, which is applied after the $10 discount.
To determine how to write this as an equation.
Let x be the purchase total.
⇒ (x-10) - 20/100*(x-10) = 25
⇒ (x - 10)*(0.20) = 25
Divide by 0.20
⇒ x - 10 = 25/0.20
Add 10 to both the sides
⇒ x = 25/0.20 + 10 = 135
Learn more about Arithmetic operations here:
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