Answer:
True
Step-by-step explanation:
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:
d
Step-by-step explanation:
dwdwdwdwdwdwd
Answer:
- 417
Step-by-step explanation:
step 1:
replace 'm', with '-3'
-415 + -3
step 2:
solve
both numbers are negative so the answer is negative
-415 + -3 = -417
