isabellaquez1
Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Someone Please help me

Someone Please Help Me class=

Sagot :

emanshahzadi929

Explain the mistake made:

[tex]=7x-21-2x+10[/tex] is not the right answer for [tex]7(x-3)-2(x+5)[/tex]

Correct work and answer:

[tex]7(x-3)-2(x+5)[/tex]

[tex]7(x)+(7)(-3)+(-2)(x)+(-2)(5)[/tex]

[tex]7x-21-2x-10[/tex]

Combine the like terms:

[tex](7x-2x)+(-21-10)[/tex]

[tex]5x-31[/tex]

Therefore, the final answer is [tex]5x-31[/tex]

[tex]{ \bf{ \underbrace{Mistake \:made:}}}[/tex]

7 ( [tex]x[/tex] - 3 ) - 2 ( [tex]x[/tex] + 5 )

7 ( [tex]x[/tex] - 3 ) - 2 [tex]x[/tex] [tex]\sf\red{+}[/tex] 10 ❌

[ The "+" ( positive sign, above in [tex]\sf\red{red}[/tex] ) should be in "-" ( negative sign ) since [tex]\sf\blue{(-)\:x\:(+)\:=\:-}[/tex] ]

[tex]{ \bf{ \underbrace{Correct\:work\:and\:answer :}}}[/tex]

[tex]7(x - 3) - 2(x + 5) \\ = 7x - 21 - 2x - 10 \\ = 7x - 2x - 21 - 10\\ = 5x - 31[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.