5a+5b+9a+3b=14a+8b
14*3+8*2=42+16=58
13a+13b-7b+4a=17a+6b
17*3+6*2=51+12=63
6x+6a-5a=6x+1a
6*4+1=25
30x-5x-4x=21x
21*4=84
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5a+5b+9a+3b=14a+8b
14*3+8*2=42+16=58
13a+13b-7b+4a=17a+6b
17*3+6*2=51+12=63
6x+6a-5a=6x+1a
6*4+1=25
30x-5x-4x=21x
21*4=84