Answer:
1.
2.
Step-by-step explanation:
1.
Do cross multiplication
Distribute 3 through the parentheses
Move 3x to left hand side and change it's sign
Collect like terms
Divide both sides by 3
Calculate
The value of x is 1
---------------------------------------------------------------------
2.
Do cross multiplication
Distribute 2 through the parentheses
Similarly, distribute 6 through the parentheses
Move 12n to left hand side and change it's sign
Similarly, move 48 to right hand side and change it's sign
Collect like terms
Add the numbers : 48 and 2
Divide both sides by -10
Calculate
The value of n is -5 .
Hope I helped!
Best regards! :D