Respuesta:
La incógnita es 1.
Explicación paso a paso:
6+9x-15+21x = -2x+1+22
9x+21x+2x = 22+1+15-6
32x = 32
x = 32/32
x = 1
Comprobación:
6+9(1)-15+21(1) = -2(1)+1+22
6+9-15+21 = -2+1+22
21 = 21
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Respuesta:
La incógnita es 1.
Explicación paso a paso:
6+9x-15+21x = -2x+1+22
9x+21x+2x = 22+1+15-6
32x = 32
x = 32/32
x = 1
Comprobación:
6+9(1)-15+21(1) = -2(1)+1+22
6+9-15+21 = -2+1+22
21 = 21