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3 years ago

Is the equation 3+z= -9 true false or open

Mathematics

2 answers:

Harrizon [31]3 years ago

6 0

Subtract 3 from both sides

(z = -9 - 3)

Simplify -9 - 3 to -12

z = -12

3 + -12 = -9 so this is true.

liq [111]3 years ago

3 0

3+z = -9 is open since you do not have a value for z

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3 years ago

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svetlana [45]

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2 years ago

Read 2 more answers