Answer:
If this answer is correct please make me as a brainlist
Answer:
Substitute
Step-by-step explanation:
Example
y=3
11+y=2x
The first thing you should do is put 3 in place of y in the second equation.
11+3=2x
14/2=2x/2
x=7
Answer:
She changed the symbols in the first two problems because they were divided by a negative number whereas she shouldn't have changed the symbol in the last problem as it was not divided by a negative number and so the sign remains the same.
Answer:
21/4
Step-by-step explanation:
