janiyalindsey16
Answered

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

Thank you!

Sagot :

One solution let's find that

[tex]\\ \rm\hookrightarrow 7x=5x-25+30[/tex]

[tex]\\ \rm\hookrightarrow 7x=5x+5[/tex]

[tex]\\ \rm\hookrightarrow 2x=5[/tex]

[tex]\\ \rm\hookrightarrow x=5/2[/tex]

Lenvy

Answer:

one solution

Step-by-step explanation:

[tex]7x=5x-25+30[/tex]

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

[tex]7x=5x+5[/tex]

[tex]\mathrm{Subtract\:}5x\mathrm{\:from\:both\:sides}[/tex]

[tex]7x-5x=5x+5-5x[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]2x=5[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}2[/tex]

[tex]\frac{2x}{2}=\frac{5}{2}[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]x=\frac{5}{2}[/tex]

[tex]x=2.5[/tex]

~lenvy~

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