1. Cross multiply
5(8b+19)=7(4b+7)
2. Expand
40b+95=28b+49
3. Subtract 28b from both sides
40b+95-28b=49
4. Simplify 49b+95-28b to 12b+95
12b+95=49
5. Subtract 95 from both sides
12b=49-95
6. Simplify 49-95 to -46
12b=-46
7. Divide both sides by 12
b=46/12
8. Simplify 46/12 to 23/6
b=-23/6
Have a nice day
