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3x + 12 = -7x - 28
First, move all variables to one side and numbers to the other. There are several different ways to begin, but let's move the 12 by subtraction from both sides.
3x = -7x - 40 is the new equation. Next, move the -7x to the left by addition to both sides.
10x = -40
Divide both sides by 10
x = -4
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3x plus 8 equals 2x plus 28?
3x + 8 = 2x +28 3x - 2x = 28 - 8 x=20
What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?
3x + 7 = -4x + 28 implies 7x + 7 = 28
What is the answer to 3x plus 6 plus 7 equals -28?
x=-5
What is 3x plus 6 plus 7 equals 28?
x = 5
What is the answer to 5x equals 3x plus 12?
2x-12
Related Questions
3x plus 8 equals 2x plus 28?
3x + 8 = 2x +28 3x - 2x = 28 - 8 x=20
What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?
3x + 7 = -4x + 28 implies 7x + 7 = 28
What is the answer to 3x plus 6 plus 7 equals -28?
x=-5
What is 3x plus 6 plus 7 equals 28?
x = 5
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
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.
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