3 years ago

Write and solve an equation to find the number: The sum of three times a number and 12 is 45.

Mathematics

2 answers:

pashok25 [27]3 years ago

4 0

Answer:

Step-by-step explanation:

Equation

3x +12 = 45 Subtract 12 from both sides

Solution

3x + 12 - 12 = 45 - 12

3x = 33 Divide by 3

3x/3 = 33/3

x = 11

Mamont248 [21]3 years ago

3 0

Step-by-step explanation:

3x+12=45

3x=45-12

3x=33

3x/3=33/3

x=11

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