7-(4a-3)-(2a+1)*9=2(a-9)

Simple and best practice solution for 7-(4a-3)-(2a+1)*9=2(a-9) 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 7-(4a-3)-(2a+1)*9=2(a-9) equation:


Simplifying
7 + -1(4a + -3) + -1(2a + 1) * 9 = 2(a + -9)

Reorder the terms:
7 + -1(-3 + 4a) + -1(2a + 1) * 9 = 2(a + -9)
7 + (-3 * -1 + 4a * -1) + -1(2a + 1) * 9 = 2(a + -9)
7 + (3 + -4a) + -1(2a + 1) * 9 = 2(a + -9)

Reorder the terms:
7 + 3 + -4a + -1(1 + 2a) * 9 = 2(a + -9)

Reorder the terms for easier multiplication:
7 + 3 + -4a + -1 * 9(1 + 2a) = 2(a + -9)

Multiply -1 * 9
7 + 3 + -4a + -9(1 + 2a) = 2(a + -9)
7 + 3 + -4a + (1 * -9 + 2a * -9) = 2(a + -9)
7 + 3 + -4a + (-9 + -18a) = 2(a + -9)

Reorder the terms:
7 + 3 + -9 + -4a + -18a = 2(a + -9)

Combine like terms: 7 + 3 = 10
10 + -9 + -4a + -18a = 2(a + -9)

Combine like terms: 10 + -9 = 1
1 + -4a + -18a = 2(a + -9)

Combine like terms: -4a + -18a = -22a
1 + -22a = 2(a + -9)

Reorder the terms:
1 + -22a = 2(-9 + a)
1 + -22a = (-9 * 2 + a * 2)
1 + -22a = (-18 + 2a)

Solving
1 + -22a = -18 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
1 + -22a + -2a = -18 + 2a + -2a

Combine like terms: -22a + -2a = -24a
1 + -24a = -18 + 2a + -2a

Combine like terms: 2a + -2a = 0
1 + -24a = -18 + 0
1 + -24a = -18

Add '-1' to each side of the equation.
1 + -1 + -24a = -18 + -1

Combine like terms: 1 + -1 = 0
0 + -24a = -18 + -1
-24a = -18 + -1

Combine like terms: -18 + -1 = -19
-24a = -19

Divide each side by '-24'.
a = 0.7916666667

Simplifying
a = 0.7916666667

See similar equations:

| y=464-8x | | 6s+9=-15 | | (6m-4n)(2m+7n)= | | 7(3n+5)=7(9n+9)+4 | | 11-2c=33 | | -6.1=-4.3-0.1g | | 5x=(x+132) | | 5x^2-0.2x+1.6=0 | | 50x+2=144 | | 38-x=5x-4 | | y=8x^2+7 | | -1(-2)(5)(-2)= | | Y+6x=14 | | 3-x=5x-4 | | x^2+24x-52= | | 25x-120x+144=0 | | 1/3=-1/2x-3/5 | | -13.5=-3.5-1.25r | | 3(2x+7)=7 | | x^2+12x+11=5 | | 7x+49=21x+35 | | 100x+20=460 | | 16-3x(x+1)=7-2(x+2) | | n^2+8n-26=7 | | 4v-6=-30 | | s^2-13st-30t^2= | | 2(x+7)-8=x+9 | | 8=3+y | | 6+55x=33x+14 | | 18=(x+y) | | 9=t/12 | | (4x^2-1)-(18x^2-9x)=0 |

Equations solver categories