Letter C)63=9x7, multiplication
A.
5x+12=3x+18
2x+12=18
2x=6
x=3
you would get paid the same amount if you worked 3 hours at each job
B.
5(5)+12
10+12
22
3(5)+18
15+18
33
you would get paid more at the second job if you worked for 5 hours
<span>
(-1 + -4x)(4 + -5x) = 0</span>
<span>Well, 8 * 43 = 344:
Word from- Eight * forty-three = three hundred forty-four
Expanded form- 300+40+4
</span>
5sqrt(x+7)=-10
Dividing both sides by 5:
5sqrt(x+7)/5=-10/5
sqrt(x+7)=-2
Squaring both sides of the equation:
[sqrt(x+7)]^2=(-2)^2
x+7=4
x+7-7=4-7
x=-3
Replacing in the original equation:
5sqrt(x+7)=-10
5sqrt(-3+7)=-10
5sqrt(4)=-10
5(2)=-10
10=-10 It's not equal, then x=-3 is an extraneous solution
