3x + 2 = 5 + 3(x + 1) + 2x
3x + 2 = 5 + 3x + 3 + 2x
2 = 5 + 3 + 2x
2 = 8 + 2x
-2x = 8 - 2
-2x = 6
x = -3
4(y + 3) = 8 - 5(y - 31) - 16
4y + 12 = 8 - 5y + 155 - 16
4y + 12 = 147 - 5y
4y + 5y = 147 - 12
9y = 135
y = 15
(-3) + 15
-3 + 15
12
Besitos OvO
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Verified answer
Tema: Ecuaciones
1. 3x + 2 = 5 + 3(x + 1) + 2x
3x + 2 = 5 + 3(x + 1) + 2x
3x + 2 = 5 + 3x + 3 + 2x
2 = 5 + 3 + 2x
2 = 8 + 2x
-2x = 8 - 2
-2x = 6
x = -3
2. 4(y + 3) = 8 - 5(y - 31) - 16
4(y + 3) = 8 - 5(y - 31) - 16
4y + 12 = 8 - 5y + 155 - 16
4y + 12 = 147 - 5y
4y + 5y = 147 - 12
9y = 135
y = 15
Ahora sumamos "x + y"
(-3) + 15
-3 + 15
12
Respuesta: Opción C) 12
Besitos OvO