7x+4(300-x)=5(300)

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Solution for 7x+4(300-x)=5(300) equation:


Simplifying
7x + 4(300 + -1x) = 5(300)
7x + (300 * 4 + -1x * 4) = 5(300)
7x + (1200 + -4x) = 5(300)

Reorder the terms:
1200 + 7x + -4x = 5(300)

Combine like terms: 7x + -4x = 3x
1200 + 3x = 5(300)

Multiply 5 * 300
1200 + 3x = 1500

Solving
1200 + 3x = 1500

Solving for variable 'x'.

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

Add '-1200' to each side of the equation.
1200 + -1200 + 3x = 1500 + -1200

Combine like terms: 1200 + -1200 = 0
0 + 3x = 1500 + -1200
3x = 1500 + -1200

Combine like terms: 1500 + -1200 = 300
3x = 300

Divide each side by '3'.
x = 100

Simplifying
x = 100

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