4a%×3ab:6a'b =4a%°×3aが×- 4a6°×3ab 1 6a% 3'y-(-2)*× 6a% =2ab 2 =32y-4z°y× -3ry×ア× 1 2 4 ×39 3c×2 4cy×3 202 2 ニ 8月16日(月) 2(3r+) =6x+8y -3(4a-b) =-12a+36 16( 18- b、 =4a-26 -32-29 ニー -20-) 40(-音+め = - 8c+15y 3 = -5c+4y 8月17日(火) (6x+9%) +3 =2.c+3y (12a-4b)-4 =3a-b (-6a+8b)=(-2) =3a-4b (-30c+24g)-(-6) =5x-4y (9c+3y-6)+(-3) =-3c-y+2 8月18日(水) 2(4a-b)+4(a-26+1) =8a-26+4a-86+4 =12a-106+4 3(2a-56) -2(4a+36+1) =6a-156-8a-66-2 =-2a-216-2 (4.c+8y)+4+3(x-3g) =エ+2y+3x-9y =4x-7y 3(a-26+c) -5(2a+b-2c) =3a-66+3c-10a-56+10c =-7a-116+13c -2(3z?-2.r+5) -4(z+2x-3) =-6?+4r -10-4c-8x+12 =-10-4.x+2