19-2x=13
19
-13
------
6
6/2=3
19-(2)(3)=13
x=3
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40
It is an equation and the value of x is 91
5
It is a linear equation in one variable, x.
Because there is no equals sign.
The one-step equation that equals 13 is x = 13. In this equation, x represents the unknown value that, when solved, will equal 13. This is a simple linear equation that can be solved by performing the inverse operation, which in this case would be x = 13.
40
It is an equation and the value of x is 91
A 2-step equation that equals 13 could be: 2x + 7 = 13. To solve this equation, first subtract 7 from both sides to isolate the variable: 2x = 6. Then, divide both sides by 2 to solve for x: x = 3. Therefore, when x = 3, the equation 2x + 7 equals 13.
5
It is a linear equation in one variable, x.
Because there is no equals sign.
Set up the equation and solve: x + 5 = -13 (next subtract 5 from each side of the equation to solve for x) x = -18
-9-2x+x = -13 -2x+x = -13+9 -x = -4 x = 4
-13
- 2(3X - 8Y = - 18)3(2X + 5Y = 19)- 6X + 16Y = 366X + 15Y = 57----------------------------add31Y = 93Y = 3========now, find X; second equation will do2X + 5(3) = 192X + 15 = 192X = 4X = 2==========both check and are consistent(2, 3)-----------------ordered pair
To solve for x in the equation 2x - 17 = 13, you first need to isolate the variable x. Add 17 to both sides of the equation to get 2x = 30. Then, divide both sides by 2 to find x = 15.