If: 2x = 26 Then: x = 13
13
3x4+1
1 + 12 = 13
If 2x - 13 = 5 then 2x = 5 + 13 (we have in effect added 13 to both sides of the equation in this step) 2x = 18 x = 9.
Dear Questioner its not able to solve two variables for one equation, give one more equation. Thanks
88=13+5x -13 -13 75= 5x 75/5 =15 x=15
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
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An equation demonstrates the equality of two expressions. x2+12x+13 is only one expression. For example, x+y : expression, not equation x+5 = 3 : equation
If: m/4 = -13 Then by multiplying both sides by 4: m = -52
It is 13 because 13*13*13 = 2197