7(x+2)=7x-10
First, distribute 7 to x and 2.
7x+14=7x-10
Subtract 7x from both sides.
14=-10
This means that there are no possible solutions to the equation, no matter what number you assign to the variable x.
In example, if I assigned the number 3 to be x;
7(3+2)=7(3)-10
21+14=21-10
35=11
No matter what x equals, the two sides of the equation will never be equal.
There is no solution to the equation.
I hope this helps :)