Answer:
x= 3.78
Explanation:
34-2x=7x
Remember that if you take anything to the other side of the equal sign, its sign becomes the opposite like - becomes + and vice versa, ÷ becomes × and vice versa. Also, our objective is to isolate x.
So shift -2x to the other side to collect the like terms (anything with the same base) and it will become +2x.
So:
34=7x+2x
9x=34
If there is nothing between a variable (x here) and a number (9 here), it simply means that it is multiplying so shifting 9 to the other side will convert it to division.
x= 34/9 (/ is also a symbol of division and it means fraction)
x=3.77777777.......
x= 3.78
(rounded off to 2 decimal places)