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Simplifying 42x = 40 + 100 Combine like terms: 40 + 100 = 140 42x = 140 Solving 42x = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '42'. x = 3.333333333 Simplifying x = 3.333333333
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