Use substitution
Given both y values, you know that they have to be equal

3x + 3 = x - 1
2x + 3 = -1
2x = -4, divide by 2
x = -2
Now plug x value into any of the equation to find y value
y = 3(-2) + 3
y = -6 + 3, y = -3

Solution: x = -2, y = -3

4 0

3 years ago

Read 2 more answers

Johnson and Jocatol Ltd. owned a business office with floor measuring 15 m by 8 m which was to be carpeted. The cost of carpetin

SVEN [57.7K]

Cost of painting is GHe 109,320

Given:

Floor measure = 15 m by 8 m

Cost of carpeting = GHe 890 per square meter

Total cost of painting and carpeting = GHe 216,120

Find:

Cost of painting

Computation:

Area of floor = 15 × 8

Area of floor = 120 square meter

Cost of carpeting = 120 × 890

Cost of carpeting = GHe 106,800

Cost of painting = Total cost of painting and carpeting - Cost of carpeting

Cost of painting = 216,120 - 106,800

Cost of painting = GHe 109,320

Learn more:

brainly.com/question/14094934?referrer=searchResults

5 0

2 years ago

Who wants to join a pad-let?

Thepotemich [5.8K]

Answer:

me bc im bored

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Please answer these questions!!

daser333 [38]

11. Assuming distance is proportional to time,
.. (3 h)/(7 h) = d/(665 km)
.. d = (665 km)*(3/7) = 285 km . . . . . . selection B

12. (30 L)/(1.5 L/min) = 20 min . . . . . . selection C

3 0

3 years ago

When solving a linear system by substitution, how do you decide which variable to solve first?￼

When solving a linear system by substitution, how do you decide which variable to solve first?