Solve for x
x=-\frac{3}{7}\approx -0.428571429
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x+3=-6x
Multiply both sides of the equation by 4, the least common multiple of 4,2.
x+3+6x=0
Add 6x to both sides.
7x+3=0
Combine x and 6x to get 7x.
7x=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-3}{7}
Divide both sides by 7.
x=-\frac{3}{7}
Fraction \frac{-3}{7} can be rewritten as -\frac{3}{7} by extracting the negative sign.
Examples
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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