Solve for y
y=-1
Graph
Quiz
Linear Equation
5 problems similar to:
\frac { 0.3 y - 0.1 } { 0.4 } - 1 = \frac { 5 y - 7 } { 6 }
Share
Copied to clipboard
6\times \frac{0.3y-0.1}{0.4}-6=5y-7
Multiply both sides of the equation by 6.
6\left(\frac{0.3y}{0.4}+\frac{-0.1}{0.4}\right)-6=5y-7
Divide each term of 0.3y-0.1 by 0.4 to get \frac{0.3y}{0.4}+\frac{-0.1}{0.4}.
6\left(0.75y+\frac{-0.1}{0.4}\right)-6=5y-7
Divide 0.3y by 0.4 to get 0.75y.
6\left(0.75y+\frac{-1}{4}\right)-6=5y-7
Expand \frac{-0.1}{0.4} by multiplying both numerator and the denominator by 10.
6\left(0.75y-\frac{1}{4}\right)-6=5y-7
Fraction \frac{-1}{4} can be rewritten as -\frac{1}{4} by extracting the negative sign.
4.5y+6\left(-\frac{1}{4}\right)-6=5y-7
Use the distributive property to multiply 6 by 0.75y-\frac{1}{4}.
4.5y+\frac{6\left(-1\right)}{4}-6=5y-7
Express 6\left(-\frac{1}{4}\right) as a single fraction.
4.5y+\frac{-6}{4}-6=5y-7
Multiply 6 and -1 to get -6.
4.5y-\frac{3}{2}-6=5y-7
Reduce the fraction \frac{-6}{4} to lowest terms by extracting and canceling out 2.
4.5y-\frac{3}{2}-\frac{12}{2}=5y-7
Convert 6 to fraction \frac{12}{2}.
4.5y+\frac{-3-12}{2}=5y-7
Since -\frac{3}{2} and \frac{12}{2} have the same denominator, subtract them by subtracting their numerators.
4.5y-\frac{15}{2}=5y-7
Subtract 12 from -3 to get -15.
4.5y-\frac{15}{2}-5y=-7
Subtract 5y from both sides.
-0.5y-\frac{15}{2}=-7
Combine 4.5y and -5y to get -0.5y.
-0.5y=-7+\frac{15}{2}
Add \frac{15}{2} to both sides.
-0.5y=-\frac{14}{2}+\frac{15}{2}
Convert -7 to fraction -\frac{14}{2}.
-0.5y=\frac{-14+15}{2}
Since -\frac{14}{2} and \frac{15}{2} have the same denominator, add them by adding their numerators.
-0.5y=\frac{1}{2}
Add -14 and 15 to get 1.
y=\frac{\frac{1}{2}}{-0.5}
Divide both sides by -0.5.
y=-1
Divide \frac{1}{2} by -0.5 to get -1.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}