Answer:
-8/23
Step-by-step explanation:
3x/(5x+2) = - 4
3x = - 4(5x + 2)
3x = -20x - 8
23x = - 8
x = - 8/23
Answer:
No mistake
Step-by-step explanation:
2x + y = 5
x - 2y = 10
y = 5 - 2x
x - 2(5 - 2x) = 10
x - 10 + 4x = 10
5x - 10 = 10
5x = 20
x = 4
2(4) + y = 5
y = -3
She made no mistake
You can check by plugging in x = 4 and y = -3 into the original equations . They fit exactly.
Answer:
x= -2
Step-by-step explanation:
Is that negative 2 minus 8? if so put that into the calculator and add 8 to both sides and divide by 2 after that. simple algebra
