Solve for x
x=0.95
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\frac{-0.7}{0.4}=3-5x
Divide both sides by 0.4.
\frac{-7}{4}=3-5x
Expand \frac{-0.7}{0.4} by multiplying both numerator and the denominator by 10.
-\frac{7}{4}=3-5x
Fraction \frac{-7}{4} can be rewritten as -\frac{7}{4} by extracting the negative sign.
3-5x=-\frac{7}{4}
Swap sides so that all variable terms are on the left hand side.
-5x=-\frac{7}{4}-3
Subtract 3 from both sides.
-5x=-\frac{7}{4}-\frac{12}{4}
Convert 3 to fraction \frac{12}{4}.
-5x=\frac{-7-12}{4}
Since -\frac{7}{4} and \frac{12}{4} have the same denominator, subtract them by subtracting their numerators.
-5x=-\frac{19}{4}
Subtract 12 from -7 to get -19.
x=\frac{-\frac{19}{4}}{-5}
Divide both sides by -5.
x=\frac{-19}{4\left(-5\right)}
Express \frac{-\frac{19}{4}}{-5} as a single fraction.
x=\frac{-19}{-20}
Multiply 4 and -5 to get -20.
x=\frac{19}{20}
Fraction \frac{-19}{-20} can be simplified to \frac{19}{20} by removing the negative sign from both the numerator and the denominator.
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}