The general form of linear equation is

ax + by + c = 0

#### Write 2x + 3y = 20 in general form

2x + 3y = 20

2x + 3y − 20 = 0

Comparing with ax + by + c = 0

a = 2, b = 3, c = −20

#### Write x = −5 as an equation in two variable

#### Write 2x = y as an equation in two variable

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