Solution of the equation 3y + 20 = 3 + 2y is y = -17
Further explanation
Solving linear equation mean calculating the unknown variable from the equation.
Let the linear equation : y = mx + c
If we draw the above equation on Cartesian Coordinates , it will be a straight line with :
m → gradient of the line
( 0 , c ) → y - intercept
Gradient of the line could also be calculated from two arbitrary points ( x₁ , y₁ ) and ( x₂ , y₂ ) on the line with the formula :
\(\large {m = \frac{y_2 - y_1}{x_2 - x_1}\)
If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :
\(y - y_1 = m ( x - x_1 )\)
Let us tackle the problem.
\(3y + 20 = 3 + 2y\)
\(3y - 2y = 3 - 20\)
\(y = -17\)
Learn more
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Answer details
Grade: High School
Subject: Mathematics
Chapter: Linear Equations
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point
