Question

75+□- 30=70

124+□-150=0​

Answer 1

Answer:

75+25-30=70

124+26-150=0

Answer 2

Answer:

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a)

$75 + x - 30 = 70$

$75 + x = 70 + 30$

$x = 100 - 75$

$x = 25$

So,

$75 + 25 - 30 = 70$

b)

$124 + x - 150 = 0$

$124 + x = 0 + 150$

$x = 150 - 124$

$x = 26$

So,

$124 + 26 - 150 = 0$