If you have at least as many equations as your have unknown variables, the 'system' is solvable (unless the equations are copies of eachother).
In this case, isolate one letter and plug it in the other. I'm going for the 2a in the bottom one (it doesn't matter)
2a - 4b = 12 => (divide by two and move the b's to the other side)
a = 6 + 2b. (plug this one into the top equation)
4(6+2b) + 6b = 10 => 24+8b+6b = 10 => 24 + 14b = 10 => 14b = -14 => b=-1
a = 6 + -2 = 4.
So a=4 and b=-1.
Answer:
x=18
Step-by-step explanation:
ok, so you mulityply base and hieght then divide by 2
your base is 6 and your height is 6
6x6=36
36/2=18
your welcome
B because if you multiply .15 and .45 by 100 you get 15% and 45%. 45% is much higher than 15%
Answer:
Hey there,
Just do this to solve your problem:
2x-17
Hope, this helps :)
