1、(3)4m44(m1) ( )(4)x4是方程5x713的解。3.8x8.8 x6.56.9 x0.18.2x3.29.9 8.5x42.5 7.6x0.422.47.6x19589 5.6x17151 x4.69.713x31x176 35(x5)490 2.8x5.6(2)含有未知数的式子就是方程。(3)cc2c ( )(4)x6是方程7x735的解。1.4x8 x3.80.3 x1.17.2x4.98.1 7.6x4.56 5.9x8.39.45.8x16390 7x50580 x4.3648x31x474 48(x9)528 0.6x7.2(1)m2=2m ( )(2)含有未知数y的式
2、子就是方程。(3)yy2y ( )(4)x7是方程9x558的解。2.8x6.2 x5.44.4 x2.88.5x2.16.8 3.5x11.9 4.7x240.35.7x55344 6.6x83445 x3.58.151x4x220 36(x4)360 2x8.2(1)n2=2n ( )(3)ss2s ( )(4)x6是方程7x933的解。4.2x8.4 x2.71.3 x2.66.11.45.3 1.9x14.25 7.1x2.561.49.3x65679 8.6x23235 x37.589x38x127 20(x7)160 1x5.9(1)n22n ( )(2)含有未知数的算式就是方程。
3、(3)dd2d ( )(4)x8是方程9x567的解。0.4x5.8 x3.45.4 x39.10.16.3 2.8x26.32 6.5x3.348.76.7x20248 4.1x31338 x2.5849x34x581 92(x2)920 2.7x9.4(1)s22s ( )(3)6d66(d1) ( )(4)x8是方程4x626的解。0.2x5.8 x9.37.4 x38.1x3.98.4 2.2x15.18 8.4x4.737.35.5x72148 7.1x87126 x0.67.987x54x705 75(x7)1200 4.6x9.5(1)s2=2s ( )(2)含有x的算式就是方程
4、。(3)7d77(d1) ( )(4)x9是方程6x945的解。0.4x9.8 x3.41.3 x4.48.44.58.6 5.9x11.8 8.8x7.254.46.5x72188 5.2x32332 x3.69.445x62x963 81(x1)567 4x8.3(1)x22x ( )(3)cc2c ( )(4)x9是方程5x1035的解。2.2x7.7 x90.5 x46.5x3.87.7 9.9x57.42 4x2.529.59.1x66571 6x38202 x0.18.775x25x700 63(x9)630 0.5x6.1(1)t22t ( )(3)xx2x ( )(4)x6是方
5、程3x810的解。1.5x6.8 x9.60.1 x3.26.1x1.28.7 8.2x56.58 9.1x0.744.86.4x94418 8.2x39617 x2.19.156x65x484 87(x8)783 1.9x5.4(1)x2=2x ( )(3)tt2t ( )(4)x7是方程3x912的解。3.8x9.5 x9.63.4 x4.89.6x2.45.9 5.2x35.88 9x1.134.95.7x80376 8.6x76268 x3.36.378x11x267 20(x4)100 1.6x8.7(1)a2(3)6y66(y1) ( )(4)x6是方程5x723的解。2.3x6.
6、8 x0.60.6 x4.38.7x4.87 6.4x2.56 5.3x7.713.57.7x26513 8x27373 x26.492x55x735 14(x9)196 2.1x8(1)b2=2b ( )(3)2a22(a1) ( )(4)x4是方程9x432的解。2.8x7.6 x8.91 x4.67.50.87.9 7.8x66.3 8.6x6.827.67.8x88458 5.1x64293 x3.18.577x89x1162 38(x7)494 4.5x8.6(1)y22y ( )(2)含有x的式子就是方程。(4)x9是方程9x774的解。4.9x9.7 x51.7 x4.97.7x
7、4.99 4.6x9.66 9.7x1.247.35.3x90228 4.9x75219 x3.57.728x29x513 37(x9)407 2x9.4(1)n22d ( )(4)x4是方程4x313的解。3.3x8.5 x9.49.4 x2.15.70.69.2 9.7x23.28 9.2x0.754.59x42318 9.7x21755 x4.76.55x28x99 12(x4)132 4.7x5.1(1)d2=2d ( )(2)含有y的算式就是方程。(4)x4是方程5x119的解。1x9.2 x2.97.2 x4.46.90.17.6 4.9x6.86 7.2x5.216.44.8x96336 7.7x35196 x86x66x152 53(x2)530 3.8x8.7(4)x6是方程7x735的解。2.2x9.6 x9.98.3 x2.97.5x0.67.1 1.9x18.81 8.9x0.679.59.1x83281 8.7x32316 x4.39.815x69x336 27(x6)297 3x7.4
copyright@ 2008-2023 冰点文库 网站版权所有
经营许可证编号:鄂ICP备19020893号-2