Question

25×0.8×(120-T)=100×4.2×(T-20)​

Answer 1

Answer:

25×0.8×(120-T)=100×4.2×(T-20)

20×(120-T)=420×(T-20)

120-T=21×(T-20)

120-T=21T-420

22T=540

T=540/22

T=270/11