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1. - 4(X + 1) - 20 = 282?

1. - 4(X + 1) - 20 = 28 2. - 2(X - 5) + 3(X + 5) = 20 3. - SI : MN - P = Q . , HALLAR "M".

En resumen

1) 4(x + 1) - 20 = 28 4x + 4 - 20 = 28 4x = 28 + 16 4x = 44 x = 44 / 4 = 11 2) 2( x - 5 ) + 3 (x + 5) = 20 2x - 10 + 3x + 15 = 20 5x = 20 - 5 5x = 15 x = 15 / 5 = 3 3) MN - P = Q despejamos M MN = Q + P M = Q + P N.

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1) 4(x + 1) - 20 = 28 4x + 4 - 20 = 28 4x = 28 + 16 4x = 44 x = 44 / 4 = 11

2) 2( x - 5 ) + 3 (x + 5) = 20 2x - 10 + 3x + 15 = 20 5x = 20 - 5 5x = 15 x = 15 / 5 = 3

3) MN - P = Q despejamos M MN = Q + P M = Q + P N.