How do you solve 9a + 15 =10a - 7?
1 Answer
May 31, 2016
Explanation:
Given,
9a+15=10a-7
Subtract
9acolor(white)(i)color(red)(-9a)+15=10acolor(white)(i)color(red)(-9a)-7
15=a-7
Add
15color(white)(i)color(red)(+7)=a-7color(white)(i)color(red)(+7)
a=color(green)(|bar(ul(color(white)(a/a)color(black)(22)color(white)(a/a)|)))