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vesna_86 [32]
3 years ago
12

Solve the equation. 3.1x + 4.6 = 10.8 A.) 5 B.) 3 C.) 2 D.) 8.7

Mathematics
2 answers:
Nataly_w [17]3 years ago
8 0

The answer is C.) 2 and the reason for this is because:

3.1X + 4.6 = 10.8

Subtract 4.6 from both sides of the equal sign.

3.1X = 6.2

Divide both sides by 3.1 so ou can get the variable "X" by itself.

X = 2

avanturin [10]3 years ago
4 0

Note the equal sign. What you do to one side, you do to the other.

Do the opposite of PEMDAS.

First, subtract 4.6 from both sides

3.1x + 4.6 (-4.6) = 10.8 (-4.6)

3.1x = 10.8 - 4.6

3.1x = 6.2

Isolate the x. Divide 3.1 from both sides

3.1x/3.1 = 6.2/3.1

x = 6.2/3.1

x = 2

C) 2 is your answer

hope this helps

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