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inequality 0.75x>3 Multiply both sides of the inequality by 4/3 if you want to know what x is. from where did you get 4/3 to multiply to find x. How do you know that? MULTIPLY BOTH SIDES BY 4/3 The 4/3 comes from dividing both
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Solve 2a + b = 3 4a  5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a  5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10  5b = 20 Take
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