5x+7=3x+1 One solution was found : x = -3 Rearrange: Rearrange the equation by subtracting what is to lớn the right of the equal sign from both sides of the equation : ...

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5x+7=3x+3 One solution was found : x = -2 Rearrange: Rearrange the equation by subtracting what is khổng lồ the right of the equal sign from both sides of the equation : ...
5x-7=3x-9 One solution was found : x = -1 Rearrange: Rearrange the equation by subtracting what is to lớn the right of the equal sign from both sides of the equation : ...
displaystylex=11 Explanation:Collect terms in x on the left side of the equation and numeric values on the right side.subtract 3x from both sides. displaystyle2x-3x+7=cancel3xcancel-3x-4 ...

Xem thêm: Đồ Thị Của Hàm Số Lũy Thừa, Hàm Số Mũ Và Hàm Số Logarit, Hàm Số Lũy Thừa Là Gì


x = 4Explanation:distribute khổng lồ obtain3x + 24 + x = 60collect 'like terms' → 4x +24 = 60subtract 24 from both sides to obtain 4x = 16divide both sides by 4 hence x = 4
Work backwards PESADM to find the lost unknown. Explanation:To find something that is lost it usually best khổng lồ work backwards. The order of operation is PEMDAS backwards PESADM. Think about it ...
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left< eginarray l l 2 & 3 \ 5 & 4 endarray ight> left< eginarray l l l 2 và 0 & 3 \ -1 & 1 & 5 endarray ight>
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