.04x+0.09(100-x)=7.5

Simple and best practice solution for .04x+0.09(100-x)=7.5 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 .04x+0.09(100-x)=7.5 equation:


Simplifying
0.04x + 0.09(100 + -1x) = 7.5
0.04x + (100 * 0.09 + -1x * 0.09) = 7.5
0.04x + (9 + -0.09x) = 7.5

Reorder the terms:
9 + 0.04x + -0.09x = 7.5

Combine like terms: 0.04x + -0.09x = -0.05x
9 + -0.05x = 7.5

Solving
9 + -0.05x = 7.5

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -0.05x = 7.5 + -9

Combine like terms: 9 + -9 = 0
0 + -0.05x = 7.5 + -9
-0.05x = 7.5 + -9

Combine like terms: 7.5 + -9 = -1.5
-0.05x = -1.5

Divide each side by '-0.05'.
x = 30

Simplifying
x = 30

See similar equations:

| 4x+5=-31-2x | | 5-6=p-8.3 | | 5x-4x+2=20 | | 50+4x+2x=180 | | 0.75n-18=0.25n-4 | | 180=(x+123)+(x+63) | | 0.75n-18=0.25n-4 | | -4b^2+16=0 | | x+(x+2)=24 | | 75+20g=375 | | .625(8x+16)+1=.5(12x-2)+3 | | 5.25x+3.25=1.75x+10.25 | | 15y+2=12 | | 544+6=0 | | 4x^2+x-48=0 | | -10.2+c=-8.4 | | 5(x+4)+4x=-7 | | 7-(3x-2)=21 | | 6x+(5-2x)=2(2x+4) | | 8n-3n=40 | | 14x-7x=0 | | -40=5a-7a+4a | | 4c+5=11 | | Vf=at+Vo | | 4x^3+4xy^2-30x-2=4y^3+4yx^2-30x-4 | | 23y+(31-y)*15=561 | | 5y+3=4y-7 | | (2x-30)+45=x | | 11x^2+8x-3= | | -x-7=16 | | 7-5x-4x+5x=3-6x | | 180=(x+82)+(x+112) |

Equations solver categories