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3. A ABC - DEF Solve for x.I added a picture, please help ASAP

3. A ABC - DEF Solve for x.I added a picture, please help ASAP-example-1

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\begin{gathered} \frac{5}{x+\text{ 4}}\text{ = }(8)/(x+10) \\ By\text{ cross multiplying we have.} \\ 5(x+10)\text{ = 8(}x\text{+10)} \\ 5x\text{ + 50 = 8}x\text{ + 80} \\ 5x-8x\text{ = 80 -50} \\ -3x\text{ = 30} \\ x\text{ =}(30)/(-3)\text{ = -10} \end{gathered}

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