Answer:
n=3
Step-by-step explanation:
3n − 2 = 7
add 2 to each side
3n-2+2 = 7+2
3n = 9
divide by 3
3n/3 = 9/3
n = 3
Answer:x = -12
Step-by-step explanation:<!>BRAINLIEST APPERICATED<!>
Answer:
0
Step-by-step explanation:
just plug in the numbers to the letters in the equation
The solution 349 is given, and its number 3, 4 and 9 determine how many times 13 can be subtracted:
The first subtraction is 3x13 (x100) = 3900
The second subtraction is 4x13 (x10) = 520
The third subtraction is 6x13 = 78
So the answer is 520, which is also what you get when you subtract 78 from 598 of course.