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Simplifying 42(0.7x) + 20(0.3x) = 50000000 Remove parenthesis around (0.7x) 42 * 0.7x + 20(0.3x) = 50000000 Multiply 42 * 0.7 29.4x + 20(0.3x) = 50000000 Remove parenthesis around (0.3x) 29.4x + 20 * 0.3x = 50000000 Multiply 20 * 0.3 29.4x + 6x = 50000000 Combine like terms: 29.4x + 6x = 35.4x 35.4x = 50000000 Solving 35.4x = 50000000 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '35.4'. x = 1412429.379 Simplifying x = 1412429.379
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