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Which equation has the solution x=4 ? 2x+1=9 9x+8=-44 5x+8=83 8x-5=71

Which equation has the solution x=4 x=4 ?\newline2x+1=9 2 x+1=9 \newline9x+8=−44 9 x+8=-44 \newline5x+8=83 5 x+8=83 \newline8x−5=71 8 x-5=71

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Find properties of circles from equations in general formright chevron icon

Full solution

Q. Which equation has the solution x=4 x=4 ?\newline2x+1=9 2 x+1=9 \newline9x+8=−44 9 x+8=-44 \newline5x+8=83 5 x+8=83 \newline8x−5=71 8 x-5=71
  1. Check equation for x=4x=4: Check the first equation 2x+1=92x+1=9 for x=4x=4.\newlineSubstitute xx with 44 in the equation.\newline2(4)+1=92(4) + 1 = 9\newline8+1=98 + 1 = 9\newline9=99 = 9
  2. Substitute xx with 44: Since the first equation is true for x=4x=4, we have found the equation with the solution x=4x=4.

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