First we need to find the number they started with.
(x+7)*2=26
Solve for x
x+7=13
x=6
To do the operations in reverse, we double it first and then add 7.
6*2=12
12+7=19
Final answer: 19
For the order of operation use PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
For memorizing the order you could say
Please
Excuse
My
Dear
Aunt
Sally
The temperature would have dropped 28 degrees
The measure of PQS is D) 49° because 35° + 14° = 49°.
Answer:
Step-by-step explanation:
Por aspa simple:
x²+x-30=0
X +6
X -5
(x+6)(x-5)=0
x+6=0
x=-6
x-5=0
x=5
espero te sirva suerte en tus estudios :D