7x+5y=-24 (1)
4x+y=42 (2)
multiply equation (2) by 5 to get
20x+5y=210 (3)
then calculate (3)-(2) which gives you
13x=234 hence x=18
then substitute for x in either equation to get y=-30
Answer:1.41
Step-by-step explanation: subtraction
Answer:
Just a heads up, please google , desmos.com . ive been reccomending this to alot of people. it graphs everything for you while providing adequate reasoning and explanation.
Answer:
-10, -6, 3, 4, 7
Step-by-step explanation:
Hope it helps ^^
65 x .12 = 7.865 - 7.8 = 57.2