Respuesta :
x + 2 (2x + 20) = 85
x + 4x + 40 = 85
5x + 40 = 85
5x = 45
x = 9
12y + 6 + 32y = 2y - 6y - 30
44y + 6 = -4y -30
48y = -36
y = -36/48
y = -3/4
x + 4x + 40 = 85
5x + 40 = 85
5x = 45
x = 9
12y + 6 + 32y = 2y - 6y - 30
44y + 6 = -4y -30
48y = -36
y = -36/48
y = -3/4
The values by solving the linear equation is
1. x = 9
2. y = -3/4
What is linear equation?
A linear equation only has one or two variables. No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
Given equation :
1. x + 2 (2x + 20) = 85
or, x + 4x + 40 = 85
or, 5x + 40 = 85
or, 5x = 45
or, x = 9
2. 12y + 6 + 32y = 2y - 6y - 30
or, 44y + 6 = -4y -30
or, 48y = -36
or, y = -36/48
or, y = -3/4
Hence, the value of x is 9 and y is -3/4.
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