Solving Simultaneous Equations

The second equation can be solved for y, and then substituted into the first equation to obtain a single equation with a single unknown. y = -6 + 4x. 3x – 2(-6 + 4x) = 7. 3x + 12 – 8x = 7-5x + 12 = 7-5x = -5. ... there is no reason not to have a calculator or computer do it for you. The way to do this is to first learn how to put a system ... ................
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