90=30+x+40+x

Simple and best practice solution for 90=30+x+40+x 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 90=30+x+40+x equation: 


Simplifying
90 = 30 + x + 40 + x

Reorder the terms:
90 = 30 + 40 + x + x

Combine like terms: 30 + 40 = 70
90 = 70 + x + x

Combine like terms: x + x = 2x
90 = 70 + 2x

Solving
90 = 70 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
90 + -2x = 70 + 2x + -2x

Combine like terms: 2x + -2x = 0
90 + -2x = 70 + 0
90 + -2x = 70

Add '-90' to each side of the equation.
90 + -90 + -2x = 70 + -90

Combine like terms: 90 + -90 = 0
0 + -2x = 70 + -90
-2x = 70 + -90

Combine like terms: 70 + -90 = -20
-2x = -20

Divide each side by '-2'.
x = 10

Simplifying
x = 10

See similar equations:

| 3(x+4)=5x+5 | | -3k+k= | | 4x-13=x+5 | | 5(4x+3)+9= | | 4x-12x=7 | | -7v+2v= | | 5x-12=4x-10 | | 3(-1x+5)=-53 | | 4-x+2= | | 4p-1-10-6p= | | -4(5)(-6)= | | 6x-10y=18 | | 84+y+2Y=180 | | 3+8n=3(2n)-1 | | 4-z^2= | | 14-7x= | | 4(x+6)+2= | | 2x+18=3x-7 | | 6a+3=2a+30 | | 5b=28-2b | | z^4+0.2*z^2=0 | | 21=21+x | | 40=-16*t+40t+4 | | 7(9x+-6)=-92 | | 2(3x+4)-5x=9 | | 7a+5-12a+32= | | 9b=6b+39 | | 6(3x+14)=-3 | | 6+0.44a=0.56a | | 5+0.5(9-y)=0.6y-2(y-0.5) | | 3/4x-9=3 | | 3x+6y-6x= |

Equations solver categories