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0.4z-3/1.5+9=7/5
We move all terms to the left:
0.4z-3/1.5+9-(7/5)=0
We add all the numbers together, and all the variables
0.4z+9-3/1.5-(+7/5)=0
We add all the numbers together, and all the variables
0.4z+7-(+7/5)=0
We get rid of parentheses
0.4z+7-7/5=0
We multiply all the terms by the denominator
(0.4z)*5-7+7*5=0
We add all the numbers together, and all the variables
(+0.4z)*5-7+7*5=0
We add all the numbers together, and all the variables
(+0.4z)*5+28=0
We multiply parentheses
0z+28=0
We add all the numbers together, and all the variables
z+28=0
We move all terms containing z to the left, all other terms to the right
z=-28
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