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

What else can I help you with?

What is the answer to 5x equals 3x plus 12?

2x-12

What is 3x plus 8 equals 12?

3x+8 = 12 3x = 4 x = 4/3

What does 3x plus 42 equals 6x plus 12 mean?

3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x

What is -3x plus y equals 12?

Point slope equation: Y=3X+12

What is the answer to 3x plus 2y - 5 equals 0 x equals y plus 10?

3x+2y-5=0 3x+2y=5 Im lost im only 12 work out the rest hope i helped

3x plus 12 equals x plus 48?

3x+12=x+48: 3x-x=-12+48 2x=36 x=18

3x - 12 equals -2x plus 23 equals?

3x - 12 = -2x + 235x = 35 so x = 7

How do you solve 7x plus 12 equals 3x?

7x = 3x - 12 4x=-12 x=-3

Is 3x plus 5y equals 12 perpendicular to 5x plus 3y equals 18?

No.

Solve for y -3x plus 6y equals 12?

y-3x+6y=12 7y=3x+12 y=3x/7 +12/7

What is the answer to 4 plus 6x equals 5 plus 3x plus 7?

6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...

Rewrite the equation in function form -3x plus y equals 12?

y=3x+12