A+b+c+d=770

a+b=c+d

a-b=49

c-d=211

Find numbers.

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The ages of three brothers add up to 38 years. The oldest brother is 5 years older than the youngest brother. Five years ago, the oldest was twice the age of the youngest.

2 ((5+3) (2+4)) 2 (5+3 (2+4)) solve

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Tyna simplified the expression StartFraction 3 x cubed Over 12 x Superscript negative 2 Baseline EndFraction to StartFraction x Over 4 EndFraction. What was Tyna's mistake?

List the amplitude, period, phase shift and vertical shift of the function (t) = 5 sin 2t.

Simplify s7 4 1216-10-7-5 6

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