Solution:
7x - 7 = 14
7x = 14 + 7
7x = 21
x = 21/7
x = 3
Checking:
7(3) - 7 = 14
21 - 7 = 14
14 = 14
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It is an equation because: a = 6
The equation "9n equals 126" can be written as 9n = 126.
14!!
3x - 4y = 14 is a linear equation in two variables. It is also the equation of line.
x/7 = 14 x = 98