Answer:
fraction: x=-11/4
or
decimal: x= -2.75
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
okay, let's start with the -(-2). In math, the negative of a negative is positive. so basically, the -(-2) becomes a positive. The positive version of -2 is +2. So, the equation becomes 3+2, which is 5.
Answer:
5
Step-by-step explanation:
The exponent (the number above 4) shown is 5
Since the angles add to 180 degrees, set up an equation.
80 + 2x + 2 + 5x = 180
Combine like terms
7x + 82 = 180
subtract 82 from both sides
7x = 98
divide both sides by 7
x = 14