Solve each given equation and show your work. Tell whether each question has one solution, an infinite number of solutions, or n o solutions. Explain your answers. (A) 2x+4(x-1)=2+4x. (B) 25-x=15-(3x+10) (C) 4x=2x+2x+5(x-x)
1 answer:
2x + 4(x - 1) = 2 + 4x 2x + 4x - 4 = 2 + 4x 6x - 4 = 2 + 4x 6x - 4x = 2 + 4 2x = 6 x = 3........there is 1 solution 25 - x = 15 - (3x + 10) 25 - x = 15 - 3x - 10 25 - x = -3x + 5 3x - x = 5 - 25 2x = - 20 x = -20/2 x = -10.....there is 1 solution 4x = 2x + 2x + 5(x - x) 4x = 4x + 5x - 5x 4x = 4x......this has infinite solutions learn this... if ur equation ends in a variable equaling a number, then there is one solution. if ur equation ends in something not equal, like 2 = 4, or 4 = 6, then there is 0 solutions. if ur equation ends in something equal to something,(the same) like 2 = 2, or 4x = 4x, then there is infinite solutions
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