Complete the solution of the equation. Find the value of y when x equals 9.
3x + 4y = 43
Answers
Answered by
0
Answer:
y=4
Step-by-step explanation:
3x+4y=43 ---(i)
make y the subject of the formula
4y=43-3x
divide through by 4
y=43-3x/4 --(ii)
since x=9
subst x=9 into eqn (ii)
y=43-3(9)/4
y=43-27/4
y=16/4
y=4
Answered by
0
Answer:
Step-by-step explanation:
3x+4y=43
given x=9
27+4y=43
4y=43-27=16
y=4
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