1. Multiply each equation so they end up with the same coefficient
2. Subtract your second equation from the first
3. Solve for one of the variables (I tend to solve an equation that only contains 2 variables if possible. So it would be if you have one question with x and y, solve for the easier one)
4. Substitute the variable you found in the least step into one of the other equations and find a second variable.
5. Substitute both variables you found into the last equation and there you should be left with x, y, and z :))
I hope this helped sksjsk if it didn’t I could write it out to hopefully help more :)
Answer:
C. 76 + 7i
Step-by-step explanation:
49 squared is 7 and since it's negative, it is an imaginary number. Therefore, it is 7i. Which leaves C to be the correct option.
Answer: all of them
Step-by-step explanation:
Answer:
He earns 749 dollars.
Step-by-step explanation:
I multiplied the money he earns per day ($75) to each day he works (5 days) and I got 375 , but I also multiplied how much he get paid to install windows ($8) to how many he installs every 5 days and I got 374 , and Then I added up 374 and 375 and that's how I got 749 . Plzz correct me if I'm wrong .
Answer:
A
Step-by-step explanation:
3(5+x)
3(5)+3(x)
15+3x
