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Question
4.5x-7=20
Solve the equation
x=6
Evaluate
4.5x-7=20
Move the constant to the right-hand side and change its sign
4.5x=20+7
Add the numbers
4.5x=27
Divide both sides
\frac{4.5x}{4.5}=\frac{27}{4.5}
Divide the numbers
x=\frac{27}{4.5}
Solution
More Steps
Evaluate
\frac{27}{4.5}
Convert the decimal into a fraction
More Steps
Evaluate
4.5
Convert the decimal into a fraction
\frac{45}{10}
Reduce the fraction
\frac{9}{2}
\frac{27}{\frac{9}{2}}
Multiply by the reciprocal
27\times \frac{2}{9}
Reduce the numbers
3\times 2
Multiply the numbers
6
x=6
Show Solutions
Rewrite the equation
x=6
Evaluate
4.5x-7=20
Convert the decimal into a fraction
More Steps
Evaluate
4.5
Convert the decimal into a fraction
\frac{45}{10}
Reduce the fraction
\frac{9}{2}
\frac{9}{2}x-7=20
Multiply both sides of the equation by LCD
9x-14=40
Move the constant to the right side
9x=54
Solution
x=6
Show Solutions
Graph