I need help with the last three

Question 12 of 252 pointssteps for solving 6x- 18 = 54 are shown. explain how step 1 solve the equation.6x -18 = 546x -18 +18 = 54 +186x = 72original equationstep 1step 2step 36x 7266x = 12step 4.oa. adding 18 to both sides isolates the variable. des sb. subtracting 18 from both sides undoes the subtraction. oc. adding 18 to both sides isolates the variable term. od. subtracting 18 from both sides combines like terms.

Originally, uruguay was home to small groups of indigenous tribes. during european colonization, nearly all the indigenous population was conquered, killed, or driven out. in what year did the spanish explorers first land in the area? 1492 1945 1600 1516

Llena el espacio con la forma del verbo que se escribe correctamente. mi mamá me cinco dólares para gastar en el mercado.