Solve for x
x=\frac{4}{9}\approx 0.444444444
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2x-4=-7x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
2x-4+7x=0
Add 7x to both sides.
9x-4=0
Combine 2x and 7x to get 9x.
9x=4
Add 4 to both sides. Anything plus zero gives itself.
x=\frac{4}{9}
Divide both sides by 9.
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Matrix
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Simultaneous equation
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Limits
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