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I need help on this question. It's about solving systems by graphing and substitution. im not sure if i'm right. I got (4,-7) im not sure if that's all i have to graph.

I need help on this question. It's about solving systems by graphing and substitution-example-1
User ShadowMare
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2 Answers

1 vote

Answer:

Answer:

(4,-7)

Explanation:

To solve the system of equations, we can use the substitution method. Solving the first equation for y, we get y = 5 - 3x. Substituting this expression for y into the second equation, we get x - 4(5 - 3x) = 32. Solving this equation for x, we find that x = 4. Substituting this value of x into the first equation, we find that y = -7. So the solution to the system of equations is (x,y) = (4,-7).

To graph these equations, you would need to plot them on a coordinate plane. The first equation can be rewritten in slope-intercept form as y = -3x + 5. This means that the y-intercept is 5 and the slope is -3. The second equation can be rewritten in slope-intercept form as y = (1/4)x - 8. This means that the y-intercept is -8 and the slope is 1/4.

Explanation:

User Magistern
by
8.4k points
4 votes

Answer:

(4,-7)

Explanation:

To solve the system of equations, we can use the substitution method. Solving the first equation for y, we get y = 5 - 3x. Substituting this expression for y into the second equation, we get x - 4(5 - 3x) = 32. Solving this equation for x, we find that x = 4. Substituting this value of x into the first equation, we find that y = -7. So the solution to the system of equations is (x,y) = (4,-7).

To graph these equations, you would need to plot them on a coordinate plane. The first equation can be rewritten in slope-intercept form as y = -3x + 5. This means that the y-intercept is 5 and the slope is -3. The second equation can be rewritten in slope-intercept form as y = (1/4)x - 8. This means that the y-intercept is -8 and the slope is 1/4.

I need help on this question. It's about solving systems by graphing and substitution-example-1
User Rrhrg
by
7.5k points

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