Select the equation that can be used to find the input value at which f (x ) = g (x ), and then use that equation to find the input, or x -value.

Set the two expressions equal: 1.8x − 10 = −4. Add 10 to both sides to get 1.8x = 6, then divide by 1.8 to find x = 10/3, or about 3.33. This matches the choice with the equation 1.8x − 10 = −4; that equation also appears under choice C.

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