Question

Solve the equation

Answer 1

5x-4(4x+4)=50

Answer 2

distribute first

Answer 3

Does she do the 4 multiplied by 4x+4 first?

Answer 4

so 5x-20x-16=50

Answer 5

yes, except it is not \(4\) it is \(-4\)

Answer 6

yes that is correct

Answer 7

well not quite

Answer 8

\[-4\times 4x=-16x\] not \(-20x\)

Answer 9

\[5x-16x-16=50
\]

Answer 10

next step is combine like terms on the left

Answer 11

5x-16x-16=50
5x-16x=66
-11x=66
x=-6

Answer 12

looks good to me