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blondinia [14]
3 years ago
9

Help please! 20 points!

Mathematics
2 answers:
vladimir1956 [14]3 years ago
5 0

x+100+3x=180\\4x=80\\x=20

vladimir2022 [97]3 years ago
3 0

\text{Hey there!}

\text{Note: This line/triangle have a degree of 180}

\text{Firstly, you have to set up your equation, which is:} \text{x + 100 + 3x =180}

\text{Next, COMBINE your like terms: x + 3x}

\text{x + 3x = 4x (Side note: the x by itself is equal to a(n) invisible 1)}

\text{100 stays the same because it doesn't have a like term}

\text{4x + 100 = 180}

\text{Thirdly, we have to SUBTRACT by 100 on your sides:} \text{4x + 100 - 100}\\\text{180 - 100}

\text{Cancel out: 100 - 100 because it equals to 0}

\text{Keep: 180 - 100 because it helps us solve for our answer}

\text{Our new equation becomes: 4x = 80}

\text{Fourthly, we have to DIVIDE by 4 on each of your sides:} \dfrac{4x}{4}=\dfrac{80}{4}

\text{Cancel out:}\dfrac{4x}{4}\text{ because it gives us the result of 1}

\text{Keep:}\dfrac{80}{4}\text{ because it helps us solve for our answer}

\uparrow\text{If you solved the kept answer correctly you would have your answer for x}

\boxed{\boxed{\bf{Answer: x = 20}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~ \frak{LoveYourselfFirst:)}

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