1. -7h - 5 = 4 - 4h
h= -3
2. m+2m+1=7
m=2
4. 6z+5=4z-7
6
4. -6
The others are right.
3. 5c+9=8c
c=3
5. 3p=4 - 9p
p=-3
3. Right.
5. is wrong.
6. 6(m-2)=12
m=4
7. 4(k-6)=6(k+2)
k=18
8. w+6=3(w+6)
w=3
6 right
7. Watch your sign.
8. wrong
How do you do 5 which is 3p=4-9p
Is it 1/3
Yes. 1/3 is right.
To solve the equation 6z + 5 = 4z - 7, we need to isolate the variable z.
Step 1: Move all the terms with z to one side of the equation.
To do this, subtract 4z from both sides of the equation:
6z - 4z + 5 = 4z - 4z - 7
Simplifying the left side gives:
2z + 5 = -7
Step 2: Next, isolate the variable z by moving the constant term to the other side of the equation.
To do this, subtract 5 from both sides of the equation:
2z + 5 - 5 = -7 - 5
Simplifying gives:
2z = -12
Step 3: Finally, solve for z by dividing both sides of the equation by 2:
(2z) / 2 = (-12) / 2
Simplifying gives:
z = -6
So the solution for the equation 6z + 5 = 4z - 7 is z = -6.