Question

Is 7x=5x-25+30 no solution,one solution, or all real numbers?

Thank you!

Answer 1

one solution

Explanation:

`7x=5x-25+30`

`\mathrm{Add/Subtract\:the\:numbers:}\:-25+30=5`

`7x=5x+5`

`\mathrm{Subtract\:}5x\mathrm{\:from\:both\:sides}`

`7x-5x=5x+5-5x`

`\mathrm{Simplify}`

`2x=5`

`\mathrm{Divide\:both\:sides\:by\:}2`

`(2x)/(2)=(5)/(2)`

`\mathrm{Simplify}`

`x=(5)/(2)`

`x=2.5`

~lenvy~

Answer 2

One solution let's find that

`\\ \rm\hookrightarrow 7x=5x-25+30`

`\\ \rm\hookrightarrow 7x=5x+5`

`\\ \rm\hookrightarrow 2x=5`

`\\ \rm\hookrightarrow x=5/2`