Answer:
r = - 2.5
Step-by-step explanation:
21r - 7 - r + 5 = - 52
20r - 2 = - 52
20r - 2 + 2 = - 52 + 2
20r = - 50
20r ÷ 20 = - 50 ÷ 20
r = - 2.5
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Answer:
5y-4x= -7 :
Slope = = 0.800
<em>x </em>- <em>intercept = </em> = 1.75000
<em>y - intercept = - </em> = -1.40000 <------both of these numbers a negative
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2y+4y = 14 :
<em>y = </em> = 2.333
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<em>Hope this helped & good luck <333</em>