How do you work out what 3x plus 8 equals 12 is?

Anonymous

∙ 15y ago

Updated: 8/17/2019

3x+8 = 12

Deduct 8 from both sides of the equation:

3x+8-8 = 12-8

3x = 4

Divide both sides of the equation by 3 to find the value of x:

x = 4/3 or 1 and 1/3

Substituting the value of x into the original equation: 12 = 12

Wiki User

∙ 15y ago

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