Step-by-step explanation:
7x-5=30
Firstly -5 will cross the equality sign and become +5. so we'll have
7x=30+5=35
7x=35 we'll divide both sides by 7
giving u
7x/7=35/7
=x=5
therefore x=5.
CONFIRMATION
7*5-5=30
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The formula of a slope:

Δy = 2
Δx = 1
Substitute:

<h3>Answer: 2</h3><h3 />
Other method.
The formula of a slope:

Find two points.
(0, 1) and (1, 3). Substitute:

<h3>Answer: 2</h3>
Plant B is
feet tall.
Step-by-step explanation:
Given,
Height of plant A = 
This is 4/5 of height of plant B.
Let,
x be the height of plant B.

Multiplying both sides by 

Plant B is
feet tall.
Keywords: fraction, height
Learn more about fractions at:
#LearnwithBrainly
Answer:
answer is -3 just subtract 4 from each side
Step-by-step explanation: