1.5x+20=14x-612.2x-2=10x-663.9+12X = 119+X4.3x+12=75-6x5.76-

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  • 1.5x+20=14x-61 (5-14)x=-61-20 -9x=-81 x=9

    2.2x-2=10x-66 (2-10)x=-66+2 -8x=-62 x=31/4

    3.9+12X = 119+X (12-1)x=119-9 11x=110 x=10

    4.3x+12=75-6x (3+6)x=75-12 9x=63 x=7

    5.76-4x=7x+21 -11x=-55 x=5

    6.-32 - 5x=13-10x 5x=45 x=9

    7.152-4x= 6x+22 -10x=-130 x=13

    8.2x+10 = -90-8x 10x=-100 x=-10

    9.-151-9x=10x+20 -19x=171 x=-9

    10.10-9x= 135-44x (44-9)x=135-10 35x=125 x=25/7

    11.250-7x=38x+15 -45x=-235 x=47/9