13=-2+z

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Solution for 13=-2+z equation:



13=-2+z
We move all terms to the left:
13-(-2+z)=0
We add all the numbers together, and all the variables
-(z-2)+13=0
We get rid of parentheses
-z+2+13=0
We add all the numbers together, and all the variables
-1z+15=0
We move all terms containing z to the left, all other terms to the right
-z=-15
z=-15/-1
z=+15

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