Answer:
r = -4
Step-by-step explanation:
2r + 7 = - 1
2r = - 1 - 7
2r = - 8
Answer:
work is shown and pictured
4x-10=2x subtract 2x from both sides
2x-10=0 add 10 to both sides
2x=10 divide both sides by 2
x=5
Answer:
Step-by-step explanation:
When dividing by a negative the sign changes to the opposite.
