.05x+.09(100-x)=7.8

Simple and best practice solution for .05x+.09(100-x)=7.8 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 .05x+.09(100-x)=7.8 equation: 


Simplifying
0.05x + 0.09(100 + -1x) = 7.8
0.05x + (100 * 0.09 + -1x * 0.09) = 7.8
0.05x + (9 + -0.09x) = 7.8

Reorder the terms:
9 + 0.05x + -0.09x = 7.8

Combine like terms: 0.05x + -0.09x = -0.04x
9 + -0.04x = 7.8

Solving
9 + -0.04x = 7.8

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 + -0.04x = 7.8 + -9

Combine like terms: 9 + -9 = 0
0 + -0.04x = 7.8 + -9
-0.04x = 7.8 + -9

Combine like terms: 7.8 + -9 = -1.2
-0.04x = -1.2

Divide each side by '-0.04'.
x = 30

Simplifying
x = 30

See similar equations:

| 9y+3x=-7 | | -3-2n+9=29 | | -8(t-3)=24 | | 38(23x+12)=-6 | | -.05x+.09(100-x)=7.8 | | 6x^2+224x+480=0 | | 8a+5=2a-2 | | 5y-5+y+41=5y+40-1y | | 28-13=5(x-6) | | x(3x+25)+50=0 | | 44+5y-8=14y-13-2y | | [13-6(x-5y)]+8(7x+y)= | | (3x+5)=(6x-7) | | 5x+7x-8=-2 | | -33-4y-44=0 | | 2x=7.7458 | | 24x+17=y | | -2.4(5.6)-8.24=8-5.3(5.6) | | -2.4w-8.24=8-5.3w | | 6X-4=-26 | | 100(-2.4)100(5.6)-100(8.24)=100(8)-100(5.3)100(5.6) | | -5(-9x+7)+7=-(-9x-8) | | -10y+2x=30 | | 12=-4(x+4) | | -240(560)-824=800-530(560) | | 4(x+6)=42 | | 8-5e=-37 | | -7x-3y-9=0 | | 3a^2-16a-7=5 | | 39.6j+5.94=3j+7 | | 6x+18y=30 | | -2y+y=8 |

Equations solver categories