please help on this problem. -2x+4(3x-4)=84. cant get the answer. thank you
-2x+4(3x-4)=84.
-2x + 12x - 16 = 84
10x = 100
x = ?
thank you Ms. Sue. I get mixed up a lot with these kind of problems. you really break it down to be able to understand. thank you
PEMDAS is the key.
http://www.mathsisfun.com/operation-order-pemdas.html
Also -- multiplying and dividing negative numbers --
https://www.mathsisfun.com/multiplying-negatives.html
hello I don't understand pemdas can you explain pls ms sue :)
is it like bodmas standing for letters
PEMDAS is the order of operations. Please read the Math is Fun website above.
To solve the equation -2x + 4(3x - 4) = 84, follow these steps:
Step 1: Distribute the 4 to the terms inside the parentheses:
-2x + 4(3x - 4) = 84
-2x + 12x - 16 = 84
Step 2: Combine like terms on the left-hand side of the equation:
(-2x + 12x) - 16 = 84
10x - 16 = 84
Step 3: Move the constant term (-16) to the right-hand side by adding 16 to both sides:
10x - 16 + 16 = 84 + 16
10x = 100
Step 4: Solve for x by dividing both sides of the equation by 10:
10x/10 = 100/10
x = 10
Therefore, the solution to the equation -2x + 4(3x - 4) = 84 is x = 10.