02-11-2015
Mathematics

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solve 7(z +2) - 3z =44

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davidyangnyc davidyangnyc

02-11-2015

distribute 7:
7z+14-3z=44
4z+14=44
4z=30
z=15/2

Answer Link

02-11-2015

7(z +2) - 3z =44
Distribute the 7. Distributive property: a(b+c) = ab + ac

7z + 14 - 3z = 44
Simplify like terms.

4z + 14 = 44
Subtract 14 to both sides

4z = 30
Divide by 4 on both sides.

z = 7.5

Answer Link

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