Solve by the substitution method.
-0.6x + 0.4y = 1.2
0) 7x - 0.1y = 3.1
A) {( 4, -3) }
B) {(x, y) | 0.6x + 0.4y = 1.2}
C)
D) {( -3, 4) }
Correct Answer:
Verified
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