Substitute and Evaluate Expressions

Evaluate the expression 3x + 5 when x = 2.

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Substitute y = 4 in the expression 2y - 7.

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Evaluate the expression 2(x + 3) when x = 4.

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Substitute a = 5 and b = 2 in the expression 3a - 2b.

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Evaluate the expression 4x- 3x + 2 when x = 1.

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Substitute y = 3 in the expression 5y - 2y + 1.

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Evaluate the expression 2(x - 1) + 3(x + 2) when x = 3.

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Substitute a = 2 and b = 3 in the expression 4a + 2b.

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