birdtay birdtay

26-03-2019
Mathematics

contestada

need some help plz-(7-9z)+8(3z-4)

Respuesta :

Ammimochi Ammimochi

26-03-2019

Simplify brackets

-7 + 9z + 8(3z - 4)

Expand

-7 + 9z + 24z - 32

Collect like terms

(-7 - 32) + (9z + 24z)

Simplify

-39 + 33z

Regroup terms

= 33z - 39

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