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3(x - 2) + 2(x - 3) = 7(x - 4) calcular x?

3(x - 2) + 2(x - 3) = 7(x - 4) calcular x.

En resumen

Hallar "x" 3(x - 2) + 2(x - 3) = 7(x - 4) 3x - 6 + 2x - 6 = 7x - 28 3x + 2x - 7x = - 28 + 6 + 6 - 2x = - 16 x = - 16 / - 2 x = 8 comprobación : 3(x - 2) + 2(x - 3) = 7(x - 4) 3(8 - 2) + 2(8 - 3) = 7(8 - 4) 3(6) + 2(5) = 7(4) 18 + 10 = 28 28 = 28 es todo.

Mejor respuesta

Irminalaprin4597
3

Hallar "x"

3(x - 2) + 2(x - 3) = 7(x - 4)

3x - 6 + 2x - 6 = 7x - 28

3x + 2x - 7x = - 28 + 6 + 6 - 2x = - 16 x = - 16 / - 2 x = 8

comprobación : 3(x - 2) + 2(x - 3) = 7(x - 4)

3(8 - 2) + 2(8 - 3) = 7(8 - 4) 3(6) + 2(5) = 7(4) 18 + 10 = 28 28 = 28

es todo.