-t + 9 = t + 5(if it helps, you can pretend there is a 1 in front of each t)-1t + 9 = 1t + 5Add 1t to both sides-1t + 1t + 9 = 1t + 1t + 5(Keep the variable on the left of the equals sign lessens confusion, so let's flip the terms)9 = 2t + 52t + 5 = 9Subtract 5 from both sides2t + 5 - 5 = 9 - 5Divide both sides by 22/2t = 4/2t = 2
76
67 + 9 = 76
0.1184
9 + 9 + 9 + 9 + 9 + 9 + 6 + 6 + 6 + 6 + 2 + 2 + 23 + 3 + 3 + 4 + 4 + 4 = 123
-5t + 9 + 2t = 30Combine like terms on the left side:-3t + 9 = 30Multiply both sides by -1"3t - 9 = -30Add 9 to both sides:3t = -21Divide both sides by 3:t = -7
-t + 9 = t + 5(if it helps, you can pretend there is a 1 in front of each t)-1t + 9 = 1t + 5Add 1t to both sides-1t + 1t + 9 = 1t + 1t + 5(Keep the variable on the left of the equals sign lessens confusion, so let's flip the terms)9 = 2t + 52t + 5 = 9Subtract 5 from both sides2t + 5 - 5 = 9 - 5Divide both sides by 22/2t = 4/2t = 2
76
67 + 9 = 76
0.1184
Gather like terms: 3t - t = 13 - 4 ie 2t = 9 so t =4½ Check: 3t = 13½ + 4 = 17½, 4½ +13 = 17½ QED
28 + 9 + 32 + 7 = 76
2t + 3 = -9Subtract 3 from each side:2t = -12Divide each side by 2:t = -6======================-3t - 7 = (-3)(-6) - 7 = +18 - 7= 11.
Okay, I am going to assume you have a basic knowledge of Algebra and just show you how to solve the problem, step by step.6t2 + 13t - 63(3t - 7)(2t + 9)Check:(3t)(2t) - (7)(2t) + (3t)(9) - (7)(9)6t2 - 14t + 27t - 636t2 + 13t - 63
4 / 5 + 8 / 9 = (9 * 4) / (9 * 5) + (5 * 8) / (5 * 9) = 36 / 45 + 40 / 45 = (36 + 40) / 45 = 76 / 45
9 goes into 76 8 times, with 4 as a remainder 72/9=8 76-72=4
9 + 9 + 9 + 9 + 9 + 9 + 6 + 6 + 6 + 6 + 2 + 2 + 23 + 3 + 3 + 4 + 4 + 4 = 123