19/ zredukuj wyrazy podobne a. -4x-7-3x+7= b. x-2xy+1/2x-1/3xy= c. -x²+y²-2y²= d. -x²+2x-3x+x²= e/ 4x+4-7x-1/2= f. -2ab+12a-4ab-16a=

a. -4x-7-3x+7=-7x b. x-2xy+1/2x-1/3xy=1 1/2x -2 1/3xy c. -x²+y²-2y²=-x²-y² d. -x²+2x-3x+x²=-x e. 4x+4-7x-1/2=-3x+3 1/2 f. -2ab+12a-4ab-16a=-6ab-4a

a. -4x-7-3x+7 = -7x b. x-2xy+1/2x-1/3xy = 1 1/2x - 2 1/3xy c. -x²+y²-2y² = -x² - y² d. -x²+2x-3x+x² = -x e. 4x+4-7x-1/2 = -3x + 2 1/2 f. -2ab+12a-4ab-16a = -6ab - 4a

a) -4x-7-3x+7=-4x-3x+7-7=-7x b) x-2xy+1/2x-1/3xy= 1¹/₂x - 2¹/₃xy c) -x²+y²-2y²=-x²-y² d) -x²+2x-3x+x²=x²-x²+2x-3x=-x e) 4x+4-7x-1/2=4x-7x+4-¹/₂=-3x+3¹/₂ f) -2ab+12a-4ab-16a= 12a-16a-4ab-2ab=-4a-6ab