Ask a New Question
Menu

Please help me to solve by substitution method.

7x+8y =44

x=41-5y

2 answers

7 x 41-5y+8y=44
287+3y=44
3y=-287+44
3y=-243
y=-243 divided by 3
y=81
Patty should have used brackets

in 7x + 8y = 44
7(41-5y) + 8y = 44
287 - 35y + 8y = 44
-27y = -243
y = 9

then in x= 41-5y
x = 41-45
x = -4

so x=-4 and y = 9
Similar Questions
  1. Solve this system using the substitution method.a – 4b = 2 5a = 3b – 7 Solve using the substitution method and be sure to
    1. answers icon 2 answers
  2. 17) solve this linear system using the method of substitution.2y-x=-10 y= -3/2x-1 20) simplify then solve by substitution
    1. answers icon 2 answers
  3. To solve this system, you could do the following steps:3x+4y=48 6x+2y=60 1. Choose the best method to solve by looking at the
    1. answers icon 7 answers
  4. Solve by either the substitution method or the addition or subtraction method2m=n-3 3m=2n-9 Just replace n with (2m + 3) in the
    1. answers icon 0 answers
more similar questions