please see question number 9 10 11 12 13 14 15 16 17 and answer
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Hey mate here's your answer to the question
9)5x+13=13
=>5x=13-13
=>5x=0
=>x=0/5
10)3x - 4=8 - x
=>3x+x=8+4
=>4x=12
=>x=12/4
=>x=3
11)3(x+7)=42
=>3x+21=42
=>3x=42-21
=>3x=21
=>x=21/3
=>x=7
12)4(x-2)=12
=>4x-8=12
=>4x=12+8
=>4x=20
=>x=20/4
=>x=5
13)3(x+2)-2(x-1)=12
=>3x+6-2x+2=12
=>x+8=12
=>x=12-8
=>x=4
14)12=2x/3-6
=>12+6=2x/3
=>18*3=2x
=>2x=54
=>x=54/2
=>x=27
hope it helps you
9)5x+13=13
=>5x=13-13
=>5x=0
=>x=0/5
10)3x - 4=8 - x
=>3x+x=8+4
=>4x=12
=>x=12/4
=>x=3
11)3(x+7)=42
=>3x+21=42
=>3x=42-21
=>3x=21
=>x=21/3
=>x=7
12)4(x-2)=12
=>4x-8=12
=>4x=12+8
=>4x=20
=>x=20/4
=>x=5
13)3(x+2)-2(x-1)=12
=>3x+6-2x+2=12
=>x+8=12
=>x=12-8
=>x=4
14)12=2x/3-6
=>12+6=2x/3
=>18*3=2x
=>2x=54
=>x=54/2
=>x=27
hope it helps you
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