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7x + 15 - 9x = 5 plz help
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7x + 15 - 9x = 5 plz help

User Wei Lu
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1 Answer

2 votes

Answer:

x =5

Explanation:


7x + 15 - 9x = 5\\\\\mathrm{Group\:like\:terms}\\7x-9x+15=5\\\\\mathrm{Add\:similar\:elements:}\:7x-9x=-2x\\-2x+15=5\\\\\mathrm{Subtract\:}15\mathrm{\:from\:both\:sides}\\-2x+15-15=5-15\\\\Simplify\\-2x=-10\\\\\mathrm{Divide\:both\:sides\:by\:}-2\\(-2x)/(-2)=(-10)/(-2)\\\\Simplify\\x = 5

User Nupadhyaya
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