Question

If x + (x + 4) = 180° then x =

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Answer 1

Answer:
x+x+4=180
2x+4=180
2x=180-4
2x=176
x=176/2
Therefore, x=88

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Answer 2

Answer:

$\Huge \boxed{X=88}$

Step-by-step explanation:

To solve this problem, first you have to isolate by the x on one side of the equation.

First, remove parenthesis.

$\displaystyle x+x+4=180$

Next, add similar into elements from left to right.

$\displaystyle x+x=2x$

Rewrite the problem down.

$\displaystyle 2x+4=180$

Then, subtract 4 from both sides.

$\displaystyle 2x+4-4=180-4$

Solve.

$\displaystyle 180-4=176$

$\displaystyle 2x=176$

Divide by 2 from both sides.

$\displaystyle \frac{2x}{2}=\frac{176}{2}$

Solve.

$\displaystyle 176\div2=\boxed{88}$

Therefore, the correct answer is x=88.

Hope this helps!

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