y = 12x + 5x - 7 Since '12x' and '5x' both have the same variable, you are able to combine them. To do this you just need to add 12 + 5 to get 17. After doing this you can rewrite the equation as y = 17x - 7. You can then solve this equation for different values by plugging in a number for 'x' or 'y' or graphing the equation.
add 3x and 5x together to make 8x. Then your equation will be 8x=32. Lastly, divide 8 to both sides which will make x=4.
Assuming the sign of 3 is a minus: Add 3 to each side: 5x = 15 Divide each side by 5: x = 3 QED
That equation has no solution. There is no possible number that's equal to 18 more than itself.
10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
5x = 80
y = 12x + 5x - 7 Since '12x' and '5x' both have the same variable, you are able to combine them. To do this you just need to add 12 + 5 to get 17. After doing this you can rewrite the equation as y = 17x - 7. You can then solve this equation for different values by plugging in a number for 'x' or 'y' or graphing the equation.
add 3x and 5x together to make 8x. Then your equation will be 8x=32. Lastly, divide 8 to both sides which will make x=4.
Assuming the sign of 3 is a minus: Add 3 to each side: 5x = 15 Divide each side by 5: x = 3 QED
That equation has no solution. There is no possible number that's equal to 18 more than itself.
You need another equation to make this a linear equation so you can solve for both variables. One equation with two variables is not enough to determine the correct answer.
10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
It is an equation and the value of x is 6
The problem '3x+9=81-5' can be solved as follows - 3x+9=81-5x Original Problem 3x=72-5x Subtract 9 from both sides of the equation 8x=72 Add '5x' to both sides of the equation x=9 Divide both sides by 8
5x - 11 - 36 is a math equation. 5x - 11 -36 can be simplified to read 5x- 47. I suspect that there is an equals missing, ie the question was/should be: "Solve for x in 5x - 11 equals -36" 5x - 11 = -36 → 5x = -25 → x = -5
5x+y=-7 3x+y=15 8=D
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.