Step-by-step explanation:
20a + 158+6c=you will expand the brackets
= so it is 120+60+48
20a+158+6c=120+60+48
20a+ 6c=120+60+48-158
20a+6c=70
20a divide by 20+6c divide by 6 on both side
a + c = 0.58
In Some Occasions yes. But I would say False.
Answer:
<u>Multiply</u> <u>3</u> on both sides.
Step-by-step explanation:
Subtract 22 on both sides so that the positive 22 can be canceled out and that the variable and one other number is left.


You should then get this equation:

Since there is division involved in
, multiply both sides by three (Hint: Opposite of division is multiplication!) so that 3 would cancel out and that only the variable f is left.
×
× 
You should get this equation now:
× 
Solving it will let you have:

To check if your answer is right, replace the variable f with -15 in
and solve.
Answer:
A1/A2=b1/b2 is not equal to C1/c2