(3a+9b-2)-(-5a+6b)=

Simple and best practice solution for (3a+9b-2)-(-5a+6b)= 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 (3a+9b-2)-(-5a+6b)= equation:


Simplifying
(3a + 9b + -2) + -1(-5a + 6b) = 0

Reorder the terms:
(-2 + 3a + 9b) + -1(-5a + 6b) = 0

Remove parenthesis around (-2 + 3a + 9b)
-2 + 3a + 9b + -1(-5a + 6b) = 0
-2 + 3a + 9b + (-5a * -1 + 6b * -1) = 0
-2 + 3a + 9b + (5a + -6b) = 0

Reorder the terms:
-2 + 3a + 5a + 9b + -6b = 0

Combine like terms: 3a + 5a = 8a
-2 + 8a + 9b + -6b = 0

Combine like terms: 9b + -6b = 3b
-2 + 8a + 3b = 0

Solving
-2 + 8a + 3b = 0

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 8a + 2 + 3b = 0 + 2

Reorder the terms:
-2 + 2 + 8a + 3b = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 8a + 3b = 0 + 2
8a + 3b = 0 + 2

Combine like terms: 0 + 2 = 2
8a + 3b = 2

Add '-3b' to each side of the equation.
8a + 3b + -3b = 2 + -3b

Combine like terms: 3b + -3b = 0
8a + 0 = 2 + -3b
8a = 2 + -3b

Divide each side by '8'.
a = 0.25 + -0.375b

Simplifying
a = 0.25 + -0.375b

See similar equations:

| 49X^2+9=42x | | (6+i)(6-i)= | | 3a^2-147=0 | | 2x-5y+14=0 | | 3x+5=5x-25 | | -10p-8=-8(6p-5)+10(2+4p) | | x-4-x=-2x+8-3x | | 5x+26=2x+20 | | (9x^2-2x+7)-(5x^2+4x)= | | .66666x=1,000,000 | | .50=7x | | 3y-12= | | 360+36x=30x | | 3x=x+1+7 | | -9x-7y=6 | | (7a+7b-1)-(a-b)= | | -4x=-x^2+12 | | 2x-266=10x-14 | | -5-25x-40x-10=4x-8x | | (-8y^2-8y+5)-(-3y^2+8)= | | 65-6x=3x+24 | | -13x=20+12y | | -3(k+8)=k-8 | | 7+9x=4 | | 2(8x-6)=32+5x | | 2*2-(3*8)+8= | | -3=1+m | | 60-s= | | 7(5n-3)+6=8n-15 | | 7h-3=2h+27 | | 4(-2x+9)=-2(-3x-7) | | 6y+4=2y+36 |

Equations solver categories