Answer:
x = -2
y = 6
Step-by-step explanation:
Part A
If she multiplies the 1st equation by 5, then she should multiply the 2nd equation by -3. Then add the two results
(1) 2x + 3y = 14 (2) 7x + 5y = 16
10x + 15y = 70 -21x - 15y = -48
<u>-21x - 15y = - 48</u>
-11x = 22
x = - 2 7(-2) + 5y = 16
-14 + 5y = 16
5y = 30
Check: Substitute values in (1) 2(-2) + 3(6) = -4 + 18 = 14 Yea! they work
idk
0.9
0.7*(1.5 + y) = 3.5y - 1.47
or, (0.7*1.5) + 0.7y = 3.5y - 1.47
or, 1.05 + 1.47 = 3.5y - 0.7y
or, 2.52 = 2.8y
or, y = 2.52/2.8
or, y = 0.9
Hope this will help. Please mark me brainliest.
C. 7x + 11
