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2 years ago

-3 = 7 - BLANK pls tell me what blank is

Mathematics

2 answers:

liberstina [14]2 years ago

4 0

Answer:

Step-by-step explanation:

-3 = 7 - x

Add x to both sides

x -3 = 7 - x +x

x - 3 = 7

Now, add 3 to both sides

x - 3 + 3 = 7 + 3

x = 10

Radda [10]2 years ago

4 0

Answer:

$\boxed{10}$

Step-by-step explanation:

$-3=7- \sf BLANK$

$\sf Subtract \ 7 \ from \ sides.$

$-3-7=-7+7- \sf BLANK$

$-10=- \sf BLANK$

$\sf Multiply \ both \ sides \ by \ -1.$

$-10(-1)=(-1)- \sf BLANK$

$10= \sf BLANK$

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