Jimenezmiranda
07.11.2020 •
Mathematics
Solve the following system of equations using SUBSTITUTION.
y = 3x
3x + 2y = 12
PLEASE EXPLAIN!! :)
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Ответ:
Step-by-step explanation:
y = 3xequation1
3x + 2y = 12equation2
sub y into equation 2
3x+2(3x)=12
3x+6x=12
9x=12
x=3/4
sub X into equation 1
y=3x
y=3(3/4)
y=9/4
y=9/4 x=3/4
I hope this helps
Ответ:
p + (8.5% * p) = 368.9
8.5% = 0.085
Multiply:
p + 0.085p = 368.9