X=2 because 3 times 2 is 6 and then you add 6 and 7 together and get 13.
X=5/2 , remove parentheses , collect like terms, move terms , collect like terms and calculate the sum , then divide both sides by 2 , hope this helped broski
Answer:
7
Step-by-step explanation:
collect like terms
14=-a+3a
2a=14
dividing both sides
a=7
N=1/100 this is the answer