Hello :
<span>7x-2y=1 ...(1)
2y=x-1...(2)
</span><span>substitution 2y in (1) :
</span>7x-(x-1) = 1
7x-x+1 = 1
7x = 0
x=0
in (2) : 2y = 0-1
2y = -1 y= -1/2
the <span>system have one solution : (0 ;-1/2)</span>
Answer:
the answer is 456
Step-by-step explanation:
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1/4 should go into each printer; 1/4 + 1/4 + 1/4 = 3/4
Answer:
a.
5.4 cm; 133 degrees
Step-by-step explanation:
hope this helps
Answer:
113 3/4 inches
Step-by-step explanation:
8 1/8 × 14
= 8 × 14 + 1/8 × 14
= 112 + 7/4
= 112 + 1 3/4
= 113 3/4
