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What is X in 0.75x+12=21

2 Answers

5 votes

Subtract 12 from both sides

0.75x = 21 - 12

Simplify 21 - 12 to 9

0.75x = 9

Divide both sides by 0.75

x = 9/0.75

Simplify 9/0.75 to 12

x = 12

User Jason Olson
by
7.1k points
5 votes

Answer:

x=12

Explanation:

0.75x+12=21

Subtract 12 from each side

0.75x+12-12=21-12

.75x = 9

Divide each side by .75

.75x/.75 = 9/.75

x = 12

User Rhinocerotidae
by
6.6k points