7+k=?
4-z=?
9-x=?
c4=?
z-9=?
9+s=?
x-4=?
x-9=?
8+f=?
d/4=? or d÷4=?
Answer:
z = 5/2y -1
Step-by-step explanation:
We observe that z has ...
- 1 added
- the sum multiplied by 2/5
To solve for z, we undo these operations in reverse order.
<h3>
Answer:</h3>
Options A and B
<h3>
Solution:</h3>
- In order to determine whether or not an ordered pair is a solution to an equation, plug in the values of x and y:
- 7x-6y=19
- 7(7)-6(5)=19
- 49-30=19
- 19=19
- We have a true statement. Therefore, the ordered pair is a solution to the equation 7x-6y=19.
- Let's try the other ordered pairs.
- 7(1)-6(-2)=19
- 7+12=19
- 19=19
- Here's another true statement.
- Let's check the remaining two options:
- 7(-5)-6(3)=19
- -35-18=19
- -53≠19
- Here we have a false statement.
- 7(-4)-6(0)=19
- -28-6=19
- -34≠19
- Therefore, the ordered pairs that make this equation true are (7,5) and (1,-2)
Hope it helps.
Do comment if you have any query.
You use 18 pints of white paint and 30 pints of red paint
