Answer:
Step-by-step explanation:
For number 7
You will have to distribute.
1. -5 times 2x equals -10x
2. -5 times -6 (remember negative times a negative is a positive) equals 11
so you should have -10x+11=4(x+11)
What you did to the first part on the equal sign you MUST do to the other side
3. 4 times x equals 4x
4. 4 times 11 equals 44
Now you should have -10x+11=4x+44
Now to solve:
5. 4x will now be negative 4x because you are cancelling
6. Move the -4x under the -10x(your are combining like terms)
You should have
-10x+11=44
-4x
This is equal to -14x+11=44
You are finding X so leave X where it is now. Like I said earlier you are combining like terms.
7. Now move the +11 ( now a negative 11) to the other side underneath the 44
8. Combine 44 and the -11
You should have:
-14x+=33
9. Divide the negative 14 to itself and divide negative 14 to the 33
What you do to one side you MUST do to the other side.
Your final answer is X= -33/14
For number 8
If you have ( ) these you ALWAYS have to distribute
1. 7 times 2x equals 14x
2. 7 times -4 equals to -28
You should have 13x-33=14x-28
Combine like terms
3. The negative 33 turns to a +33 and move it underneath the negative 28
You should have 13x=14x+5
4. Now subtract 14 now a negative 14x to the 13x
You will now have -x=5
5. Divide both sides by a negative 1
Your answer is X=-5
