You can
put this solution on YOUR website!2(x+5)= x-12
2x + 10 = x-12
Subtract x from each side:
2x -x + 10 = x-x - 12
x+10 = -12
Subtract 10 from each side:
x+10-10= -12-10
x= -22
Check: Follow the instructions of the problem.
Increase the number by 5, which would be -17, then double this would give you -34.
Decrease the same number -22 by 12 also gives you -34.
It checks!!
R^2 at SCC