1000=2800*.5+b

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Solution for 1000=2800*.5+b equation:


Simplifying
1000 = 2800 * 0.5 + b

Multiply 2800 * 0.5
1000 = 1400 + b

Solving
1000 = 1400 + b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-1b' to each side of the equation.
1000 + -1b = 1400 + b + -1b

Combine like terms: b + -1b = 0
1000 + -1b = 1400 + 0
1000 + -1b = 1400

Add '-1000' to each side of the equation.
1000 + -1000 + -1b = 1400 + -1000

Combine like terms: 1000 + -1000 = 0
0 + -1b = 1400 + -1000
-1b = 1400 + -1000

Combine like terms: 1400 + -1000 = 400
-1b = 400

Divide each side by '-1'.
b = -400

Simplifying
b = -400

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