limit as x approaches 2 of (x^2-4)/(x-2)

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

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ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

lhopital squeeze chain factoring sandwich

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Steps Examples

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12x+13y=9, 15x−23y=6

Solution

x=95157 , y=21157

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Solve by:

Solve by substitution

Solve by elimination

Solve by Cramer's rule

Solve by Gaussian elimination

One step at a time

[

12x+13y=9

15x−23y=6

]

Isolate x for 12x+13y=9: x=9−13y12

Substitute x=9−13y12

[

15· 9−13y12 −23y=6

]

Simplify

[

−157y+454 =6

]

Isolate y for −157y+454 =6: y=21157

For x=9−13y12

Substitute y=21157

x=9−13· 21157 12

9−13· 21157 12 =95157

x=95157

The solutions to the system of equations are:

x=95157 , y=21157

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