5x - 15 = 2x - 6
3x = 9
x = 3
Y = 5(3) - 15
Y = 0
(3,0)
Answer:
Step-by-step explanation:
Cost price = $n
Mark up price = selling price- cost price
= (20% × $n)
Selling price = $n + (20% × $n)
Sales tax = 5% × ($n + (20% × $n))
Total cost = selling price + sales tax
Total cost = $n + (20% × $n) + 5% × $n + (20% × $n)
= 1.2 × $n + 0.06 × $n
= 1.26 × $n.
Answer:
x=21
Step-by-step explanation:
Let's solve your equation step-by-step.
3x+5+5x+7=180
Step 1: Simplify both sides of the equation.
3x+5+5x+7=180
(3x+5x)+(5+7)=180(Combine Like Terms)
8x+12=180
8x+12=180
Step 2: Subtract 12 from both sides.
8x+12−12=180−12
8x=168
Step 3: Divide both sides by 8.
8x
/8
=
168
/8
x=21
brainliest please?
