How do you solve 4x - 9 equals 7x plus 12?

Anonymous

∙ 16y ago

Updated: 8/18/2019

4x - 9 = 7x + 12

Subtract 4x from both sides: -9 = 3x + 12

Subtract 12 from both sides: -21 = 3x

Divide both sides by 3: x = -7

Wiki User

∙ 16y ago

What else can I help you with?

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

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

8x plus 30 equals 4x plus 18 solve for x?

8x+30=4x+18 -4x -4x 4x+30=18 -30 -30 4x=-12 4x/4=-12/4 x=-3

How do you solve -4x plus 8 equals -4?

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

How do you solve 6 - 4x equals 54?

-12 (?)

How can you solve -2x equals -4x plus 24 step by step?

-2x = -4x + 24 -2x + 4x = 24 2x = 24 x = 24/2 x = 12

How do you solve 2y equals 4x plus 4?

2y = 4x + 4y = 2x + 2

What is 4x plus -12 equals 8?

If: 4x+(-12) = 8 then 4x = 20 and x = 5

Which equation is equivalent to 4x plus y equals 12?

It is: y = -4x+12

How do you solve 2x plus y equals 0 and 4x plus 2y equals 0?

many solutions

What is the solution set for -5x plus x plus 9 equals -4x plus 12?

-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.

Solve for x 5 plus 4x equals 3?

x= -.5

How do you solve 16x plus 4y equals 8?

You can't solve it. But you can simplify it to get: 4x+y=2

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