
Step-by-step explanation:








22.5 (shower) = X (variable used in place of the amount of water she uses to wash clothes) - 7.5 (the amount she used in the shower is 7.5 gallons less than she uses for washing clothes)
22.5 = X - 7.5 《 This is the equation.
Solve is by adding 7.5 to both sides to cancel out the negative 7.5 and you get (X = 30).
Answer:
-161
Step-by-step explanation:
-11(3)-16(8)
PEMDAS
P there are no parentheses
E there are no exponents
MD Multiply and divide from left to right
-33 -128
AD add and subtract from left to right
-161
Answer: 38
Step-by-step explanation: 27+11=38