Enter the number that belongs in the green box. 6x-7 X 4x + 7 20x + 5 x = [ ? ]

Question

asked Dec 23, 2021 121k views

1 Answer

Joshiste · Answer 1 · 2021-12-28T21:00:36+0000

Answer:

The solution is
x = 7 ,

Explanation:

Equation:

$6x - 7 + 20x + 5 = 180\textdegree$

-Combine like terms:

$6x - 7 + 20x + 5 = 180\textdegree$

$26x - 2 = 180\textdegree$

Add both sides by 2:

$26x - 2 + 2 = 180\textdegree + 2$

$26x = 182\textdegree$

-Divide both sides by 26:

$(26x)/(26) = (182\textdegree)/(26)$

x = 7

So, the answer is
x = 7 .