Step 4 is wrong. the answer is 1/8, she changed sign on 2^(-3) to 2^(3) without moving it to numerator
Answer: 63
Step-by-step explanation:
PEMDAS
<span> 4x + 4y = 20
If I'm not mistakened, this is in it's standard form.
Slope intercept form </span>→ y = mx + b
Let's transform this into that form.
4x + 4y = 20
4y = -4x = 20
y = -x + 5
The slope intercept form would be ⇒ <span>y = -1x + 5 </span>