Unit Test: Proportional Relationships - Part 1 Which table shows a proportional relationship between x and y?
х
o
3
5
7
8
y
1.5
2.5
3
4.5
X
2
4
o
5
6
y
6
12.
18
21
X
1
3
O
6
у
1.5
3
6
9
х
1
3
4
5
y
50
150
200
250

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

the value of x is equal to 0.

It's like discovering the answer to a puzzle. the purpose in solving an equation is to find the value or values of the variable that makes it a true statement. any value of the variable that makes the equation true is called a solution to the equation.