Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

De oplossing van x + = 1 is	A. \(\large\boldsymbol{\frac 12 }\)
	B. \(\large\boldsymbol{\frac 22 }\)
	C. \(\large\boldsymbol{\frac 32 }\)
	D. \(\large\boldsymbol{\frac 42 }\)
	E. \(\large\boldsymbol{\frac 52 }\)

[ 2-3631 - op net sinds 16.10.02-(E)-30.10.2023 ]

Translation in E N G L I S H

The solution of x + = 1 is	A. \(\large\boldsymbol{\frac 12 }\)
	B. \(\large\boldsymbol{\frac 22 }\)
	C. \(\large\boldsymbol{\frac 32 }\)
	D. \(\large\boldsymbol{\frac 42 }\)
	E. \(\large\boldsymbol{\frac 52 }\)

Oplossing - Solution

1^ste manier :
x + 1/2

1/2

= 1 ⇔ x = 1 − 1/2

1/2

=

1/2

2^de manier :
Vermenigvuldig eerst beide leden met 2
(om geen noemers te hebben)
x + 1/2

1/2

= 1 ⇔ 2x + 1 = 2 ⇔ 2x = 1 ⇔ x = 1/2

1/2

gricha