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Popular >

3x-12+9x=72

Solution

3 x - 12 + 9 x = 72

Solution

x = 7

Solution steps

3 x - 12 + 9 x = 72

Group like terms

3 x + 9 x - 12 = 72

Add similar elements:

3 x + 9 x = 12 x

12 x - 12 = 72

Move

12

to the right side

12 x = 84

Divide both sides by

12

x = 7

Popular Examples

12 x - 36 = 8 x + 12

solvefor s=(4pi^2xy)/k ,x solve for

s = \frac{4 π ^{2} x y}{k}, x

6 + a = + 9

solvefor y,2x-5y=5 solve for

y, 2 x - 5 y = 5

solvefor y,xy= 1/2 solve for

y, x y = \frac{1}{2}

Frequently Asked Questions (FAQ)

What is the answer to 3x-12+9x=72 ?
The answer to 3x-12+9x=72 is x=7
Solve for x: 3x-12+9x=72
The solution is x=7