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Mathematics Higher Level Robert Joinson

Mathematics Higher Level Robert Joinson

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©Sumbooks2002<strong>Higher</strong> <strong>Level</strong>18. Solving Equations 1Exercise 1Solve the following equations1) 7x – 3 = 602) 12x – 14 = 1303) 24 – 3x = 64) 7– 2x = – 1xx5) -- = 306) --46= 25217) --x = 88) --x32= 49) 3=10)x + 22x – 1= 511) 2x + 3 = 3x + 212) 4x + 3 = 3x + 513) 4x + 5 = 3x + 314) 7x + 3 = 10x – 615) 5( x + 3) = 7x + 516) 3( 2x – 1) = 53x ( – 15)17) 3( x + 2) – 23x ( – 5)= 1018) 4( 2x – 3) – 33x ( – 10)= 11x xx – 2 x – 219) -- + -- = 1420) ----------- + -----------3 43 2= 252x – 1 x + 13 421) -------------- – ----------- = 422) -- = -----------3 4x x + 22 32x – 1 323) ----------- = --------------24) -------------- = --x – 1 2x + 4x 41 3 125) -- -----26)x 2x2 1 1=----- = -- – -----------x + 13x x x + 1Exercise 2Solve the following equations1) x 2 – 25 = 02) x 2 – 81 = 03) 2x 2 – 72 = 04) 3x 2 – 27 = 05) ( x + 2) ( x – 3) = 06) ( x – 6) ( x + 5) = 07) ( 3x + 4) ( 2x – 1) = 08) x( 3x – 2) = 09) x( 4x + 3) = 010) 2xx ( – 4) = 011) 2x 2 + 3x = 012) 6x 2 – 4x = 013) 4x 2 – x = 014) x 2 – x – 6 = 015) 2x 2 – x – 3 = 016) 6x 2 + 4x – 2 = 017) x 2 – 3x – 10 = 018) 3x 2 + 6x = 2419) 8x 2 = 2x + 1520) 4x 2 – 25 = 04 121) --22)x61 3 1= ---- = -----x + 1 xx 2xx + 1

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