Solving/separated unknowns

Algebra
Tutor: None Selected Time limit: 1 Day

5z+7z=48

Jun 9th, 2015

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5z+7z=48

we can factorize z since it is common on the left side of the equation;

z(5+7)=48

z(12)=48

dividing both sides by 12,

z=48/12

z=4

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Jun 9th, 2015

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