42+x=81

Simple and best practice solution for 42+x=81 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 42+x=81 equation: 


Simplifying
42 + x = 81

Solving
42 + x = 81

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-42' to each side of the equation.
42 + -42 + x = 81 + -42

Combine like terms: 42 + -42 = 0
0 + x = 81 + -42
x = 81 + -42

Combine like terms: 81 + -42 = 39
x = 39

Simplifying
x = 39

See similar equations:

| (x+6)5x+7=0 | | -x^2+6x=44 | | a(5a+4b)-2(5a+4b)= | | -2(5a+4b)= | | 3t-16=8+6t | | -2(5a)= | | 5r-22=-6+3r | | 66-5x=13x+24 | | 3(x^2+4)+5=-6(x^2+2x)+13 | | X^2-4x=x(4+x) | | 5(3+5x)-2=88 | | 3x+19=13x+61 | | x^2+2x+y^2-4y-3=0 | | (x^2)+2x+(y^2)-(4y)-3=0 | | 9(x^2)+2+(y^2)-(4y)-3=0 | | 11x-12=4x+4 | | 9(x^2)+(2x)+(y^2)-(4y)-3=0 | | x^4+6x^2-135=0 | | 4=3x-20 | | y=x^2+6x+6 | | 3=11-2x | | (x-8)x(x+4)=0 | | (X+9)(1-X^2)=0 | | 10x-5+4x+2(x-7)= | | 12x^2+20x-25= | | Ln(x+1)-ln(x-2)=lnx | | 3x+12=-3(x-6) | | x^2+12x=22 | | 7x+6=8x+4 | | 5=4x+45 | | 8x-8=7x-6 | | 3x-2=5x-14 |

Equations solver categories