5x-(3+4x)=5 <=> 5x -3 - 4x = 5
<=> x=8
1. b-(294+130)+(94+130) = b - 294 - 130 + 94 + 130
= b - 200
2. -(a-b+c)-(a+b-c) = -a + b - c - a - b + c = -2a
P=a-{(a-3)-[(a+3)-(-a-2)]} = a-{(a-3)-[a+3+a+2]} = a- {(a-3)-[2a+5]}
= a- (a-3 -2a -5)
= 2a+8
Q= [a+(a+3)]-[(a+2)-(a-2)] = (2a+3)-4 = 2a -1
=> P>Q