Question

Solve each equation 180=220-k

Answer 1

formula! if A and B are some numbers then if we have:
B = A - k
we solve for k: B+k = A and then k = A - B

Answer 2

I am so confused

Answer 3

Subtract 220 from both sides
180-220=220-220-k now consolidate terms and simplify
-40=-k multiply by (both sides) by -1
40=k or k=40

Answer 4

Please note, you want to isolate the unknown by doing algebraic operations to both sides of the equation......Must do to both sides or the equation will become invalid.

Answer 5

Was there any operation you did not understand?

Answer 6

I am taking you non response as an "I understand"
bye

Answer 7

thank u