Fill in the blanks to make each statement true:

The solution of the equation 2y = 5y – is ……….. .

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In a linear equation, the …………. Power of the variable appearing in the equation is one.

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The solution of the equation 3x – 4 = 1 – 2 x is …………. .

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Any value of the variable which makes both sides of an equation equal is known as a ………. Of the equation.

Fill in the blanks to make each statement true:

9x - ……… = -21 has the solution (-2).