8a-7-9a=2

Simple and best practice solution for 8a-7-9a=2 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 8a-7-9a=2 equation: 


Simplifying
8a + -7 + -9a = 2

Reorder the terms:
-7 + 8a + -9a = 2

Combine like terms: 8a + -9a = -1a
-7 + -1a = 2

Solving
-7 + -1a = 2

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + -1a = 2 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = 2 + 7
-1a = 2 + 7

Combine like terms: 2 + 7 = 9
-1a = 9

Divide each side by '-1'.
a = -9

Simplifying
a = -9

See similar equations:

| 2x^2-7x-30=2 | | .666(4x+5)=2(2-4x)+10 | | 3x^2y+(-2xy)+xy+(-6xy^2)= | | w/3+4=8 | | -2x^2+18= | | 10h-4=-7 | | 5(-9)-(-13)= | | 6(2-x)=2x+4 | | x^2+18x+41=0 | | -9z+12=39 | | -(34+76)= | | -9x+3z-y-5x+y+4z-z+2y-x= | | (x-3)2=9 | | 15x^2+42x-9=0 | | 6x-[2-(x-1)]=x-5(x+1) | | 3x^3+9x^2-4x-12= | | (4x-3)(x+7)=0 | | (x-1)(x+2)=2x | | (X-10)(x-8)=-1 | | V=ZMK | | 25.1=2*3.14r | | -4x+2+5x=3x-15 | | 2x^2-x-18=0 | | 7(x-7)+19=4(x-6) | | 7x-17=4+(x-3) | | -8(3+6x)= | | -4x+12=-4(2x+3) | | 0.8(x-8)=12.0 | | 2x/3-5x/8=26 | | -15=3x+3 | | 3y^2-14y+8=0 | | 3*(x+4)=18-x |

Equations solver categories