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1) 2x + 3x = 5 5x = 5 x = 5 / 5 x = 1 2)18x + 4x - 52 = 58 22x = 58 + 52 22x = 110 x = 110 / 22 x = 5 3)x ^ 3 = 27 <img src="https://tex.z-dn.net/?f=%20x%20%3D%20%5Csqrt%5B%203%5D%7B27%7D%20" /> x = 3.

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Dj591
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1) 2x + 3x = 5 5x = 5 x = 5 / 5 x = 1

2)18x + 4x - 52 = 58 22x = 58 + 52 22x = 110 x = 110 / 22 x = 5

3)x ^ 3 = 27

<img src="https://tex.z-dn.net/?f=%20x%20%3D%20%5Csqrt%5B%203%5D%7B27%7D%20" />

x = 3.