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7x-15x = 9-3
-8x = 6
x = -6/8 => -3/4
Explanation of working out the problem:
7x+3=15x+9
We want X's on one side and numbers on opposite side of Equal.
When we move from one side to another, we also replace + with - and vice versa.
7x-15x=9-3
-8x=6
We divide both sides with 2 so that we get a smallest possible answer.
-4x=3
I hate dealing with negative X's. it is so... negative..
Multiply both sides with -1 and you get:
4x=-3
If you need to find X alone, then divide by 4 on both sides.
x=-3/4 or in decimal terms it will be:
x=-0.75
And that is the end of the story :-)
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What is -3 7x plus 7?
The answer to the math problem -3 7x plus 7 is x equals 1/3.
What is 3 plus 3x plus 7x equals 13?
3+3x+7x=13 3x+7x=10 10x=10 x=1
How do you solve 7x plus 2y equals -3?
Subtract by 7x and divide by 2.
7x plus 7 equals 28 x equals?
7x+7=28x 28x-7x=7 21x=7 x=3
What is 7x plus 2x equals 8x - 3?
X = -3
3 equals 2y plus 7x in standard form?
-7x - 2y = -3
What is -3 7x plus 7?
The answer to the math problem -3 7x plus 7 is x equals 1/3.
What is 3 plus 3x plus 7x equals 13?
3+3x+7x=13 3x+7x=10 10x=10 x=1
How do you solve 7x plus 2y equals -3?
Subtract by 7x and divide by 2.
How do you solve 4x plus 9 equals 7x plus 3?
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
What is the solution to 7x plus y plus 3 equals y?
7x + y + 3 = y7x + 3 = 07x = -3x = -3/7
7x plus 8 equals 11x plus 3 equals what?
7x + 8 = 11x + 3, solve for xsubtract 7x from both sides8 = 11x - 7x + 38 = 5x + 3subtract 3 from both sides5 = 5xdivide both sides by 51 = x.
7x plus 7 equals 28 x equals?
7x+7=28x 28x-7x=7 21x=7 x=3
What is 7x plus 2x equals 8x - 3?
X = -3
Why the equation 7x plus 3 equals 7x plus 3?
Why not? The statement is trivially true, meaning it holds for all values of x.
If x equals 3 and y equals 2 then 7x plus 5y equals?
7x + 5y 7(3) + 5(2) 21 + 10 = 31
What is this 3 equals 2y plus 7x in standard form?
The standard form is 7x + 2y - 3 = 0
