Solve for x
x=-\frac{9}{40\phi -51}
\phi \neq \frac{51}{40}
Solve for φ
\phi =\frac{51}{40}-\frac{9}{40x}
x\neq 0
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10\phi \times 4x-6\times 2\left(3x-2\right)=15\left(x+1\right)
Multiply both sides of the equation by 90, the least common multiple of 9,15,6.
40\phi x-6\times 2\left(3x-2\right)=15\left(x+1\right)
Multiply 10 and 4 to get 40.
40\phi x-12\left(3x-2\right)=15\left(x+1\right)
Multiply -6 and 2 to get -12.
40\phi x-36x+24=15\left(x+1\right)
Use the distributive property to multiply -12 by 3x-2.
40\phi x-36x+24=15x+15
Use the distributive property to multiply 15 by x+1.
40\phi x-36x+24-15x=15
Subtract 15x from both sides.
40\phi x-51x+24=15
Combine -36x and -15x to get -51x.
40\phi x-51x=15-24
Subtract 24 from both sides.
40\phi x-51x=-9
Subtract 24 from 15 to get -9.
\left(40\phi -51\right)x=-9
Combine all terms containing x.
\frac{\left(40\phi -51\right)x}{40\phi -51}=-\frac{9}{40\phi -51}
Divide both sides by 40\phi -51.
x=-\frac{9}{40\phi -51}
Dividing by 40\phi -51 undoes the multiplication by 40\phi -51.
10\phi \times 4x-6\times 2\left(3x-2\right)=15\left(x+1\right)
Multiply both sides of the equation by 90, the least common multiple of 9,15,6.
40\phi x-6\times 2\left(3x-2\right)=15\left(x+1\right)
Multiply 10 and 4 to get 40.
40\phi x-12\left(3x-2\right)=15\left(x+1\right)
Multiply -6 and 2 to get -12.
40\phi x-36x+24=15\left(x+1\right)
Use the distributive property to multiply -12 by 3x-2.
40\phi x-36x+24=15x+15
Use the distributive property to multiply 15 by x+1.
40\phi x+24=15x+15+36x
Add 36x to both sides.
40\phi x+24=51x+15
Combine 15x and 36x to get 51x.
40\phi x=51x+15-24
Subtract 24 from both sides.
40\phi x=51x-9
Subtract 24 from 15 to get -9.
40x\phi =51x-9
The equation is in standard form.
\frac{40x\phi }{40x}=\frac{51x-9}{40x}
Divide both sides by 40x.
\phi =\frac{51x-9}{40x}
Dividing by 40x undoes the multiplication by 40x.
\phi =\frac{51}{40}-\frac{9}{40x}
Divide 51x-9 by 40x.
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