Question 68159
9x+5=-x+15
9x+x+5=-x+x+15
10x+5=15
10x+5-5=15-5
10x=10
10x/10=10/10
{{{highlight(x=1)}}}
Check by letting x=1 and see if both sides are =.
9(1)+5=-(1)+15
9+5=-1+15
14=14 We're right!!!
Happy Calculating!!!