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A=3x+24+4\left(7x+2\right)
Use the distributive property to multiply 3 by x+8.
A=3x+24+28x+8
Use the distributive property to multiply 4 by 7x+2.
A=31x+24+8
Combine 3x and 28x to get 31x.
A=31x+32
Add 24 and 8 to get 32.
A=3x+24+4\left(7x+2\right)
Use the distributive property to multiply 3 by x+8.
A=3x+24+28x+8
Use the distributive property to multiply 4 by 7x+2.
A=31x+24+8
Combine 3x and 28x to get 31x.
A=31x+32
Add 24 and 8 to get 32.
31x+32=A
Swap sides so that all variable terms are on the left hand side.
31x=A-32
Subtract 32 from both sides.
\frac{31x}{31}=\frac{A-32}{31}
Divide both sides by 31.
x=\frac{A-32}{31}
Dividing by 31 undoes the multiplication by 31.