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Hello can you please help me with this and show your work please, also the blue line is what I have to find Help please

Hello can you please help me with this and show your work please, also the blue line-example-1
User Karel Kral
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1 Answer

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We are given the expression

5a + 10 - 3a + X = 4a +10

Where X is the expression needed to make the equation true (the blue line).

Simplifying:

2a + 10 + X = 4a + 10

Subtraction 2a + 10:

X = 4a + 10 - 2a - 10

Simplifying:

X = 2a

Thus, the blue line must contain the expression 2a

User Dportman
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