Answer:

Step-by-step explanation:

Add 20 to both sides:

Multiply 8 on both sides:


Divide by 13 on both sides:

Answer:
Hey! So I think the answer is A! I'm so sorry if its wrong, I'm trying to get points so could you mark me as brainliest? Bye and stay safe!! <3
Step-by-step explanation:
Answer:
A 20 and 45
Step-by-step explanation:
son20 & father45
0.5x^4+10.5 or 12.5 simplified is correct answer. Remove any grouping symbol such as brackets and parentheses by multiplying factors.
Use the exponent rule to remove grouping if the terms are containing exponents.
Combine the like terms by addition or subtraction.
Combine the constants.
Answer:
x=9
Step-by-step explanation:
-9x + 1 = -80
-9x = -81 substract 1 from both sides
x= 9 divide both sides by -9