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katovenus [111]

3 years ago

5

Hi, I need some help on this question

1 answer:

Alenkasestr [34]3 years ago

6 0

Answer:

A : 20x+21=30x-29

B : m<1 = 121 m<2 = 121

Step-by-step explanation:

Original equation

20x+21=30x-29

Add +29 to both sides

20x+50=30x

Subtract -20x

50=10x

Divide by 10

5 = x

Checking your work and doing substitution

20(5)+21

100+21

121

30(5)-29

150-29

121

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