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Mathematics
24 November, 08:15
7z-18 = - 2z + 19 solve for z. Show work.
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Jovani Davila
24 November, 08:33
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z=37/9
Step-by-step explanation:
move the variable to the left side and change its sign: 7z+2z-18=19
collect like terms, so add the 7 and 2: 9z=19+28
add the 28 and 19: 9z=37
divide both signs by 9: 37/9
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