Explicación paso a paso:
a) X = 8
b) X = 1
2 (x+2) + 4 = 10
2x + 4 + 4 = 10
2x = -4 -4 +10
2x = 2
X = 2÷2
X = 1
Comprobación
2 (1+2) + 4 = 10
2 + 4 + 4 = 10
10 = 10
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Explicación paso a paso:
a) X = 8
b) X = 1
2 (x+2) + 4 = 10
2x + 4 + 4 = 10
2x = -4 -4 +10
2x = 2
X = 2÷2
X = 1
Comprobación
2 (1+2) + 4 = 10
2 + 4 + 4 = 10
10 = 10