4 years ago

Solve equation for z

Mathematics

2 answers:

Brut [27]4 years ago

7 0

Answer:

7 (rounded up)

Step-by-step explanation:

9z+4/5=13.5

Multiply both sides by 5

9z+4=67.5

Subtract both sides by 4

9z=63.5

Divide both sides by 9

z=7 (rounded up)

liraira [26]4 years ago

5 0

Answer:

z = 7

Step-by-step explanation:

9z + 4 / 5 - 8 = 5.4

Add 8 to both sides.

9z + 4 / 5 = 13.4

Multiply 5 by both sides.

9z + 4 = 67

Subtract 4 from both sides.

9z = 63

Divide both sides by 9.

z = 7

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