Question

5 x a +5 x b -100 với a+b=50

cac bn giúp mình nhé mình cần gấp

Answer 1

\(5a+5b-100\)

\(=5\times\left(a+b\right)-100\)

\(=5\times50-100\)

\(=250-100\)

\(=150\)

Answer 2

\(5a+5b-100\)

\(=5\times\left(a+b\right)-100\)

\(=5\times50-100\)

\(=250-100\)

\(=150\)

Answer 3

\(5a+5b-100\)

\(=5\times\left(a+b\right)-100\)

\(=5\times50-100\)\(\left(a+b=50\right)\)

\(=250-100\)

\(=150\)