nadiamckinney
23.07.2019 •
Mathematics
Solve each of the following pairs of simultaneous equations by using substitution x+5y=8 y=3x
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Ответ:
y=3x (2)
Substitute (2) into (1):
x + 5(3x) = 8
Distribute 5:
x + 15x = 8
Combine like terms:
16x = 8
Divide both sides by 16:
x = 0.5
Substitute x = 0.5 into (2):
y = 3(0.5)
Distribute 3
y = 1.5
x = 0.5, y = 1.5
Ответ:
And more stuff cause my answer has to be 20 characters long.