9(-4-2a)-8a=42

Simple and best practice solution for 9(-4-2a)-8a=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 9(-4-2a)-8a=42 equation:


Simplifying
9(-4 + -2a) + -8a = 42
(-4 * 9 + -2a * 9) + -8a = 42
(-36 + -18a) + -8a = 42

Combine like terms: -18a + -8a = -26a
-36 + -26a = 42

Solving
-36 + -26a = 42

Solving for variable 'a'.

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

Add '36' to each side of the equation.
-36 + 36 + -26a = 42 + 36

Combine like terms: -36 + 36 = 0
0 + -26a = 42 + 36
-26a = 42 + 36

Combine like terms: 42 + 36 = 78
-26a = 78

Divide each side by '-26'.
a = -3

Simplifying
a = -3

See similar equations:

| 0.3x-1=0.2 | | -3(u+5)=4u+13 | | 13=13x+4 | | 28-5x=4x+5x | | 3x+(-2-4x)=3 | | -4v+2(v+3)=-2 | | 19x-7+22x= | | 5a=a+24 | | -3(x+2)=5x-7 | | x^2+3x+5=11 | | 5a=a+25 | | 8i-5c-(12+2c)= | | -17(n+8)= | | 3-x=160 | | 0=14x+245 | | 18=-9y | | 12a-8+a= | | 5=u+6 | | 9h-45f= | | -85w-w= | | 80y-40y= | | 2a-10p= | | 74=2x+2(3x-7) | | 7n-2n+3=5n+3 | | 0.50x=50 | | 8t-32u= | | 2(x+5)-7=3(2-x) | | -3t+2=0 | | V^2-16v-53=0 | | 3b=-(-5-8b) | | 7(-2x-3)=7 | | 9a^2+48a+64=32 |

Equations solver categories