15+15x+21-7x=4

Simple and best practice solution for 15+15x+21-7x=4 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 15+15x+21-7x=4 equation:


Simplifying
15 + 15x + 21 + -7x = 4

Reorder the terms:
15 + 21 + 15x + -7x = 4

Combine like terms: 15 + 21 = 36
36 + 15x + -7x = 4

Combine like terms: 15x + -7x = 8x
36 + 8x = 4

Solving
36 + 8x = 4

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + 8x = 4 + -36

Combine like terms: 36 + -36 = 0
0 + 8x = 4 + -36
8x = 4 + -36

Combine like terms: 4 + -36 = -32
8x = -32

Divide each side by '8'.
x = -4

Simplifying
x = -4

See similar equations:

| y=0.3x+11.4 | | 2-5(x+5)=-15 | | a^2+14a-60=0 | | 4x=2(6-2x) | | x^2+x^3=2x | | 6x-12x-8=68+14x | | (a-10)*(a-10)=200 | | -4+7z+5-2z= | | 1/3(3x-1)=-1/7-2/7 | | -2x^2+18x= | | 9(2/3)-8(3/4)=5 | | -9x-3=5(x+5) | | 70x^2+63x= | | 4a=45 | | 4(y+9)=-7y-8 | | -2y+6=5(y-3) | | 0.14y+0.06(y+7000)=1220 | | y=-4E-05x+.0065 | | 22=2(w+3)-4w | | -7=4y+5(y-5) | | 4.5n=33.75 | | 20=5(u+6)-3u | | 3w-(-3)=8-w | | -81t^2+kt+g=h | | 3x+30+3=x+10 | | 6f=20.52 | | 260/390=x/3 | | 204=12k | | -5(u+2)=-20 | | 6=2v-6 | | 5x^3-15x^2+4=0 | | 21=5-2v |

Equations solver categories