2 years ago

Z-49+851=100+21z /////////////////////////////////////////////////

Mathematics

2 answers:

WITCHER [35]2 years ago

4 0

Answer:

z=35.1

Step-by-step explanation:

noname [10]2 years ago

4 0

Answer:

z = 351/10 or z = 35.1

Step-by-step explanation:

*Add/subtract numbers: -49 + 851 = 802

z + 802 = 100 + 21z

*Subtract 802 from both sides

z + 802 - 802 = 100 + 21z - 802

*Simplify

z = 21z - 702

*Subtract 21z from both sides

z - 21z = 21z - 702 - 21z

*Simplify

-20z = -702

*Divide both sides by -20

- 20z/20 = - 702/- 20

*Simlify

z = 351/10 or z = 35.1

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