t = 5
Work Step by Step
0.07t + 0.12(t-3) = 0.59 Multiply both sides by 100 to clear the equation of all decimals. 7t + 12(t-3) = 59 Use the distributive property. 7t + 12t - 36 = 59 19t = 95 Divide both sides by 19. t = 5
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