7x-84=42

Simple and best practice solution for 7x-84=42 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 7x-84=42 equation: 


Simplifying
7x + -84 = 42

Reorder the terms:
-84 + 7x = 42

Solving
-84 + 7x = 42

Solving for variable 'x'.

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

Add '84' to each side of the equation.
-84 + 84 + 7x = 42 + 84

Combine like terms: -84 + 84 = 0
0 + 7x = 42 + 84
7x = 42 + 84

Combine like terms: 42 + 84 = 126
7x = 126

Divide each side by '7'.
x = 18

Simplifying
x = 18

See similar equations:

| -5x+3=7 | | -114+9x=39 | | y=2sin(4x) | | 24+4p=2p | | 2x-115=35-2x | | y=x^3+5x^2+x-5 | | (8m^3+9n)+7n^3= | | -10(y-8)=-40 | | -3(-7x+1)=123 | | 4n-11=15 | | 56-2x=14-8x | | 2(-2x+4)=-12 | | -(9x-15)=15(1+9x) | | 4+5=-55-6x | | x-9=-6x+19 | | 12x+7x=-5 | | -4(3-6D)=2(3d-8) | | 25a^2+2a=5868 | | 3x-10=-22+4x | | 2x+20=92 | | 13a+9b=13750 | | 9x=10+3x | | 13a+9b=13 | | x+3.1=1.6 | | x+.1=1.6 | | -x+3=-45+5x | | a^2+a=25 | | 7-2x=-4+23 | | y=100+75 | | 2a^2-16ab+14b^2=0 | | 40x+8(1.5)=525 | | (x-(2-5i))(x-(2+5i))=0 |

Equations solver categories