Oh, let's paint a happy little equation here! To simplify this expression, we first distribute the -3 to both terms inside the parentheses, giving us 7 - 12 + 6x - 10x. Next, we combine like terms to get -5 - 4x. Remember, there are no mistakes, just happy little math lessons!
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7-3(4-2x)-10x 4(4)-2x)-10x 16-8x-10 16-18x
10x ÷ 2 = 7 → 10x = 2 × 7 → x = (2 × 7) ÷ 10 → 2x = 2 × (2 × 7) ÷ 10 = 2.8
It is 3 - 14x
10x + 5 > 12x - 2 7 > 2x 7/2 > x
3x/7 + 5y/14x = 3x*2x/(7*2x) + 5y/14x = (6x2 + 5y)/14x
2x + 5y = 16 + (-5x) - 2y = 2 That gives 2x + 5y = 2 . . . . . . . . . . (I) and -5x - 2y = - 14 or 5x + 2y = 14 . . . . (II) (I)*5: 10x + 25y = 10 (II)*2: 10x + 4y = 28 Subtracting the second from the first, 21y = -18 so y = -18/21 = -6/7 and then by (I) x = 1 - 5y/2 = 1 - 5/2*(-6/7) = 1 + 15/7 = 22/7 So the ordered pair is (22/7, -6/7)