5
-13 + 24 = 11
In the equation 3x plus 7 equals 13, x is equal to 2.
Equations: 7x+4y = 9 and 2x+3y = 1 Multiply all terms in the 1st equation by 2 and all terms in the 2nd equation by 7 So: 14x+8y = 18 and 14x+21y = 7 Subtract the 1st equation from the 2nd equation: 13y = -11 => y = -11/13 By substituting y = -11/13 into any of the equations x = 23/13 Therefore the solutions are: x = 23/13 and y = -11/13
n + 13 = 21. n = 21 - 13
5
-13 + 24 = 11
In the equation 3x plus 7 equals 13, x is equal to 2.
Yes that is correct
basically you asked what -28+21 which equals -7
Equations: 7x+4y = 9 and 2x+3y = 1 Multiply all terms in the 1st equation by 2 and all terms in the 2nd equation by 7 So: 14x+8y = 18 and 14x+21y = 7 Subtract the 1st equation from the 2nd equation: 13y = -11 => y = -11/13 By substituting y = -11/13 into any of the equations x = 23/13 Therefore the solutions are: x = 23/13 and y = -11/13
n + 13 = 21. n = 21 - 13
13=m+2m=11
It is a linear equation with a single variable, y.
It is an equation and the value of x is 13/3
It is an equation and the value of x is 2.2
It is a linear equation in one variable, x.