300+x=90+45

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Solution for 300+x=90+45 equation: 


Simplifying
300 + x = 90 + 45

Combine like terms: 90 + 45 = 135
300 + x = 135

Solving
300 + x = 135

Solving for variable 'x'.

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

Add '-300' to each side of the equation.
300 + -300 + x = 135 + -300

Combine like terms: 300 + -300 = 0
0 + x = 135 + -300
x = 135 + -300

Combine like terms: 135 + -300 = -165
x = -165

Simplifying
x = -165

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