Pre-Algebra Examples

Solve for y 1/3y+9=1/10y
Step 1
Combine and .
Step 2
Combine and .
Step 3
Move all terms containing to the left side of the equation.
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Step 3.1
Subtract from both sides of the equation.
Step 3.2
To write as a fraction with a common denominator, multiply by .
Step 3.3
To write as a fraction with a common denominator, multiply by .
Step 3.4
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Step 3.4.1
Multiply by .
Step 3.4.2
Multiply by .
Step 3.4.3
Multiply by .
Step 3.4.4
Multiply by .
Step 3.5
Combine the numerators over the common denominator.
Step 3.6
Simplify each term.
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Step 3.6.1
Simplify the numerator.
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Step 3.6.1.1
Factor out of .
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Step 3.6.1.1.1
Factor out of .
Step 3.6.1.1.2
Factor out of .
Step 3.6.1.1.3
Factor out of .
Step 3.6.1.2
Multiply by .
Step 3.6.1.3
Subtract from .
Step 3.6.2
Move to the left of .
Step 4
Subtract from both sides of the equation.
Step 5
Multiply both sides of the equation by .
Step 6
Simplify both sides of the equation.
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Step 6.1
Simplify the left side.
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Step 6.1.1
Simplify .
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Step 6.1.1.1
Cancel the common factor of .
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Step 6.1.1.1.1
Cancel the common factor.
Step 6.1.1.1.2
Rewrite the expression.
Step 6.1.1.2
Cancel the common factor of .
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Step 6.1.1.2.1
Factor out of .
Step 6.1.1.2.2
Cancel the common factor.
Step 6.1.1.2.3
Rewrite the expression.
Step 6.2
Simplify the right side.
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Step 6.2.1
Simplify .
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Step 6.2.1.1
Multiply .
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Step 6.2.1.1.1
Combine and .
Step 6.2.1.1.2
Multiply by .
Step 6.2.1.2
Move the negative in front of the fraction.
Step 7
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Mixed Number Form: