Joel0920
Answered

What equation is solved by the graphed systems of equations?

A3x + 4 = 5x - 10
B3x - 4 = 5x - 10
C3x + 4 = 5x + 10
D3x - 4 = 5x + 10

What equation is solved by the graphed systems of equations? a. 3x + 4 = 5x - 10 b. 3x - 4 = 5x - 10 c. 3x + 4 = 5x + 10 d. 3x - 4 = 5x + 10 class=

Verified Answer :

naǫ

The solution on the graph is (x,y)=(7,25), so x=7.

\(a. \\ 3x+4=5x-10 \\ 3x-5x=-10-4 \\ -2x=-14 \\ x=\frac{-14}{-2} \\ x=7 \\ \\ b. \\ 3x-4=5x-10 \\ 3x-5x=-10+4 \\ -2x=-6 \\ x=\frac{-6}{-2} \\ x=3 \\ \\ c. \\ 3x+4=5x+10 \\ 3x-5x=10-4 \\ -2x=6 \\ x=\frac{6}{-2} \\ x=-3 \\ \\ d. \\ 3x-4=5x+10 \\ 3x-5x=10+4 \\ -2x=14 \\ x=\frac{14}{-2} \\ x=-7\)

x=7 in the equation a, so the answer is A.

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