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Simplifying 0.75(0.7c) = 42 Remove parenthesis around (0.7c) 0.75 * 0.7c = 42 Multiply 0.75 * 0.7 0.525c = 42 Solving 0.525c = 42 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '0.525'. c = 80 Simplifying c = 80
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