Answer:
2.5x=26-1
x=25/2.5
x=10
Step-by-step explanation:
I assume you're solving for x, so the answer is 10
First you isolate the x, so you need to subtract one from both sides, which results in the equation 2.5x = 25, and then you divide 25 by 2.5, which gives you x = 10
JKL = PQR and JKL = PQR
100/100
The original price of the book was $12.50
3x - 0.2(3x) + 10 = 4030x - 2(3x) + 100 = 400 30x - 6x + 100 = 400 24x + 100 = 400 24x = 300 x = 12.50