Step 1- for 2x+3y=45 subtract 2x on each side ex- 2x+3y=45 -2x. -2x step 2- 3y=-2x+45 now divide each variable by 3 to get y by itself step 3- y=-0.66x+15
do the same for. x+y=10 which would be. y=-x+10
now that you have both equations in y=mx+b form, you have to find x
step 4- put both equations together step 5- -0.66+15=-x+10 add 0.66,both sides. +0.66. +0.66
step 6- 15=-0.34x+10 subtract 10 on each side -10. -10 step 7- 5=-0.34x divide -0.34 on each side. ÷-0.34. ÷-0.34