What is the correct first step to solve this system of equations. 4x-3y=-10, 2x+3y=4

a) add the 2 equations together
b) subtract the 2 equations
c) multiply the second equation by 3
d) divide the first equation by 4

i would say c

step-by-step explanation:

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.

2b2t

explanation:

2b2t