Answer: (5,10)
Step-by-step explanation:
multiply first equation with 2 and add it to second to eliminate X
7x-5y=-15 //*2
14x-10y=-30
-14x+7y=0
----------------
-3y=-30
y=-30/-3
y=10
7x=50-15
7x=35
x=35/7
x=5
Answer:
10x - 13.
Step-by-step explanation:
−3(6x+ 7) + 4(7x + 2)
= -18x - 21 + 28x + 8
= 10x - 13.
<u>27</u>
using bodmas rule:
=================
Solve:
11 x 12 - 7 x 15 (carry out multiplication first)
132 - 105 (subtract)
27 (final answer)