8a-7=4a-9

Simple and best practice solution for 8a-7=4a-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 8a-7=4a-9 equation:


Simplifying
8a + -7 = 4a + -9

Reorder the terms:
-7 + 8a = 4a + -9

Reorder the terms:
-7 + 8a = -9 + 4a

Solving
-7 + 8a = -9 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-7 + 8a + -4a = -9 + 4a + -4a

Combine like terms: 8a + -4a = 4a
-7 + 4a = -9 + 4a + -4a

Combine like terms: 4a + -4a = 0
-7 + 4a = -9 + 0
-7 + 4a = -9

Add '7' to each side of the equation.
-7 + 7 + 4a = -9 + 7

Combine like terms: -7 + 7 = 0
0 + 4a = -9 + 7
4a = -9 + 7

Combine like terms: -9 + 7 = -2
4a = -2

Divide each side by '4'.
a = -0.5

Simplifying
a = -0.5

See similar equations:

| 2x/3-1=0 | | 2b+2-(4+b)=-3 | | 8/7x-1/9=6 | | x^2+5x=234m^2 | | 8/7x-1/9=-6 | | 3/(x-3)=5+x/(x-3) | | 2y^2-8y-18=0 | | 14(v+4)-2v=3(4v+2)-11 | | 63/x=x/7 | | 1/(x-5)-3(x+2)=7/(x*x-3*x-10) | | 3/2x+5/3 | | 0.15y+0.02(y+6000)=800 | | 9+8[1+2(2x-8)]=6(x+9) | | 0.19y+0.09(y+4000)=2880 | | (x*x)-3x-10=0 | | 3c-4cX+1=5c+2+3 | | 44-25=x | | 2-3a=8-2(2a+6) | | 0.19x+0.8(x-5)=0.01(2x-2) | | 7x^2-14x+35=0 | | 11/4=5n | | 6x-(25+4x)=5x-(3x+15)-10 | | 7p+8=6p+13 | | (x+5)*X=234m^2 | | 8x-16(x+1)=-8x+22 | | 0.15+0.05(y+9000)=1250 | | 5y-15=-7+7y | | (x+5)*x=234 | | 8x-16(x-1)=-8x+22 | | 5r-22=-20+6r | | 3/(x+8)=8/(x+1)-2/3 | | 5r-22=-20-6r |

Equations solver categories