Multiply first equation by 2: 4x - 2y = 20 Subtract second equation: x = 12, so y = 14.
20
You haven't given the solution to the equation ! 3x + 20 = ? If you have the number for the question-mark - you can find the value of x ! For example in the equation 3x + 20 = 50... the value of x is 10.
Add 5 to both sides of the equation to get rid of the - 5. -3x - 5 + 5 = -20 + 5 Solve and simplify. -3x = -15 Divide both sides of the equation by -3. x = 5
- 2x - 14 = 26 Switch all signs: 2x + 14 = - 26 Subtract 14 from both sides: 2x = -26 - 14 = - 40 Divide both sides by 2: x = - 40/2 = - 20
An equation never equals a number, but its solution often does.-- An equation with a solution of six: [ 3x - 14 = 4 ]-- An equation with a solution of three: [ 14 - 10x = -16 ]-- An equation with both solutions: [ x2 - 9x + 20 = 2 ]An equation that equals 6 is 10 - 4 = 6An equation that equals 3 is 10 - 7 = 3
Yes, it does.
x = 34 {add 14 to both sides: x - 14 + 14 = 20 + 14 = 34}
First you get the variables on one side and the constants on the other. -2x = 14 Then you divide by -2 to get the variable alone. x = -7
what is the solution of x-5y=10 and 2x-10y=20
280
One equation y equals 9 x equals 14 Don't forget to add it to 23.
4x - 14 + 6 = 12 first I would combine the terms -14 and +6, which when added together give us -8, so 4x - 8 = 12 then I would add 8 to both sides of the equation, which gives us 4x = 20 then I would divide both sides of the equation by 4, which gives x = 5 and that is the solution.
Multiply first equation by 2: 4x - 2y = 20 Subtract second equation: x = 12, so y = 14.
(Since 5 times 20 does equal 100, the solution is correct.
balance the equation 3x-x=20-6 3x-x=2x 20-6=14 2x=14 x=7
Well, isn't that just a happy little math problem! To find out what number times 14 equals 280, all you need to do is divide 280 by 14. And when you do that, you'll see that the answer is 20. Just like that, you've discovered the joy of solving equations!