131.The opposite angles of a parallelogram are equal. Write a linear equation in two variables to represent the statement.
x + y = 0
x = y
x = 2y
x = 2y
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132.The force applied on a boy is directly proportional to the acceleration produced in the body. Express this in the form of a linear equation in two variables.
y = x
y + x = 0
y = kx
y = kx
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133.If y = 2x – 3 and y = 5, then the value of x is