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System of Equations CalculatorSolve a 2x2 linear system a1x + b1y = c1 and a2x + b2y = c2.Score 106systemofequationsDebt Payoff CalculatorEstimate payoff time, total paid, interest, and extra-payment impact for debt payoff.Score 40ofCredit Card Payoff CalculatorEstimate payoff time, total paid, interest, and extra-payment impact for credit card payoff.Score 40ofRoof Pitch CalculatorCalculate roof pitch percentage and angle from rise and run.Score 38ofProfit Margin CalculatorCalculate gross profit margin from revenue and cost.Score 38ofStock Profit CalculatorCalculate stock profit after buy price, sell price, shares, commissions, and taxes.Score 38ofProfit CalculatorCalculate gross profit, net profit, margin, and markup from revenue and cost.Score 38ofeBay Profit CalculatorCalculate eBay profit after item cost, shipping, packaging, ad cost, and seller fees.Score 38ofShopify Profit CalculatorEstimate Shopify profit after product cost, payment fee, shipping, ads, app costs, and returns.Score 38ofTime Zone Offset CalculatorEstimate destination hour from current hour and time zone offset.Score 30ofOffer Acceptance Rate CalculatorCalculate offer acceptance rate from accepted offers and total offers made.Score 30ofCoffee to Water Ratio CalculatorCompare, simplify, scale, and distribute values for coffee to water ratio.Score 30ofRoofing CalculatorEstimate total cost, cost per unit, markup-ready price, and comparison scenarios for roofing.Score 30ofSolar System Size CalculatorEstimate solar system size from monthly usage, sun hours, and system efficiency.Score 30systemDebt Snowball CalculatorEstimate payoff time, total paid, interest, and extra-payment impact for debt snowball.Score 22ofDebt Avalanche CalculatorEstimate payoff time, total paid, interest, and extra-payment impact for debt avalanche.Score 22ofAmazon FBA CalculatorCalculate Amazon FBA profit after product cost, referral fee, FBA fee, shipping, ads, and returns.Score 22ofPTO Accrual CalculatorCalculate accrued PTO hours, remaining PTO, and estimated payout value.Score 16ofDeterminant CalculatorCalculate the determinant of a 2x2 matrix.Score 16systemofElement FinderFind an element from its name, symbol, atomic number, or approximate atomic mass.Score 16of